Ninja EG351EU 5.7L Air Fryer Review: Indoor Grill Power, Smart Probe Precision

The Ninja EG351EU sits in a slightly different lane than the typical drawer-style air fryer. Think of it as an indoor grill that also happens to move hot air with intent: sear-marking proteins on a heavy grill plate, crisping sides with a fan-driven blast, and leaning on a built-in probe when you want doneness to be a decision—not a guess.

If you cook for two to four people most nights, like fast turnaround dinners, and want one appliance that can handle a steak-and-chips moment and then pivot into vegetable roasting, this model is worth a serious look. It’s not trying to be a mini oven for large sheet-pan baking; it’s built to make high-heat cooking feel controlled and repeatable.

Quick Verdict

Who it’s for

• Weeknight grill lovers who want proper char marks indoors with a more contained cooking setup.
• Home cooks who value precision: the included digital probe helps you cook meat and fish to an internal temperature target.
• Small households that want a family-sized pot without committing to a huge dual-drawer footprint.

Who it’s not for

• Large-batch meal preppers who need two independent zones or frequent cooking for six to eight people.
• People who only want basket-style air frying and don’t care about grilling or probe cooking.
• Anyone short on counter headroom: it’s a lidded unit, so plan for comfortable clearance above the appliance.

Verified Specs Table

Spec	Verified value
Model	EG351EU
Type	5-in-1 indoor grill & air fryer (Grill, Air Fry, Roast, Bake, Dehydrate)
Cooking capacity	5.7 L cooking pot
Power	1760 W
Electrical	220–240 V~ • 50–60 Hz
Dimensions (H × W × L)	43 cm × 28 cm × 35.5 cm
Weight	8.3 kg
Temperature settings (Grill)	LO 200°C • MED 240°C • HI 260°C • MAX up to 265°C
Temperature limits (Air Fry / Bake)	Adjustable up to 200°C
Temperature limits (Roast)	Adjustable up to 220°C
Built-in thermometer	Digital cooking probe (Smart Cook system) included
Cooking surface	Ceramic-coated grill plate
Coating statement	Ceramic coating designed without PTFE or PFOA (per Ninja)
Dishwasher-safe parts	Cooking pot, grill plate, and crisper plate are dishwasher safe (per Ninja)
Cord length	81 cm
In the box	5.7 L cooking pot, grill plate, crisper/baking plate, splatter guard, digital probe, cleaning brush, recipe guide with cooking charts
Guarantee	2-year guarantee upon registration (per Ninja)

What Makes This Model Different

It’s a grill first, air fryer second—by design. Instead of a deep drawer with a basket, you get a cooking pot and a ceramic-coated grill plate that’s made to hold heat. That changes the way food browns: steaks and halloumi develop a seared surface quickly, while vegetables pick up blistering and toasty edges without needing a cast-iron pan on the hob.

The probe shifts the workflow. With traditional air fryers, you’re usually calibrating by time, visual cues, and a little luck. Here, the included digital cooking probe supports a “cook to target” approach: you can aim for a specific internal temperature and then build your side dishes around that timing.

Grill-level heat is stepped and straightforward. The grill mode uses discrete settings (LO, MED, HI, and MAX) that map to high-heat targets. It’s a practical layout: when you’re cooking quickly, you want clarity more than infinite micro-adjustments.

Cooking Performance Deep Dive

Grilling: crust, colour, and control

The EG351EU’s strength is delivering grill-style browning in a contained countertop format. A thorough preheat matters. Once the grill plate is properly hot, proteins will sear rather than steam, and vegetables will take on those darker blisters that make simple ingredients taste “finished”. For fatty cuts, be mindful of drips: keeping the pot clean and choosing a suitable oil makes a noticeable difference in how much smoke you see.

Air Fry: crisping without the “dry” trap

Air frying is essentially small-oven convection with a tighter chamber, which is why food browns faster. For best texture, keep surfaces dry (pat moisture away), avoid piling ingredients into a mound, and use a light oil coat for foods that need a crisp shell. Chips, wedges, and breaded items typically reward a shake or turn midway through cooking.

Roast & Bake: a reliable middle ground

Roast mode is a good home for chicken pieces, thick vegetables, and anything you want browned but not aggressively crisped. Bake mode is most useful for compact bakes—think small cakes, cheesy pasta cups, or baked feta. If you adapt an oven recipe, consider lowering the temperature a touch and checking early, because the smaller space tends to cook more efficiently.

Dehydrate: snacky, tidy, and surprisingly useful

Dehydrate is the quiet utility mode. It’s great for apple slices, citrus wheels for drinks, or making crisp toppings like dried tomato “crumbles”. Keep slices consistent and give them time; slower drying tends to preserve flavour.

Cooking Time & Temperature Guide

Use this as a starting point, then adjust for thickness, how full the pot is, and how cold the food starts. When using the probe, let internal temperature be the final decision-maker for proteins.

Food	Mode	Suggested setting	Typical time	Notes
Chicken thighs (bone-in)	Grill	MED (240°C)	18–26 min	Start skin-side down for colour; use the probe to confirm doneness.
Salmon fillets	Roast	190–200°C	8–14 min	Brush with oil; pull early and rest briefly for a juicy centre.
Steak (2–3 cm thick)	Grill	HI (260°C)	6–12 min	Rest 3–5 minutes; carryover heat continues cooking.
Frozen fries	Air Fry	200°C	12–20 min	Shake twice; avoid crowding for better crunch.
Fresh potato wedges	Air Fry	200°C	18–28 min	Soak then dry; add oil sparingly for crisp edges.
Broccoli florets	Air Fry	195°C	8–12 min	Finish with lemon zest and parmesan for a punchy side.
Halloumi slices	Grill	HI (260°C)	4–8 min	Don’t move too soon; searing helps release cleanly.
Roast vegetables (mixed)	Roast	200–220°C	15–28 min	Cut similar sizes; stir once for even browning.
Apple chips	Dehydrate	Low, steady heat	2–5 hrs	Slice thin; extend time for crisp chips rather than pliable slices.
Reheating pizza	Air Fry	170–180°C	3–6 min	Keeps the base snappy while warming toppings.

Adjustment rules: If food browns before it’s cooked through, lower the temperature and add time. If it cooks through but lacks colour, increase heat slightly and shorten the finishing window, or dry the surface better before cooking.

30+ Recipes That Suit the Ninja EG351EU

These ideas lean into what the EG351EU does well: quick grilling, crisping in Air Fry, and tidy roasting and baking in a smaller chamber.

1. Charred lemon-oregano chicken thighs: Marinate with lemon zest, oregano, garlic, and a whisper of honey; grill until the probe hits your target doneness, then finish with a squeeze of fresh citrus.
2. Smoky paprika halloumi & peppers: Use the grill plate for fast colour; slice halloumi thick so it browns without drying, and toss the peppers in after for a sweet, blistered finish.
3. Air-fried steakhouse chips: Cut chunky chips, soak and dry well, then air fry in batches with a light oil coat for crisp edges and fluffy centres.
4. Garlic-parmesan Brussels sprouts: Halve sprouts, add grated Parmesan at the end so it melts rather than burns; a pinch of chilli lifts the sweetness.
5. Honey-mustard salmon bites: Cube salmon, brush with Dijon and honey, and air fry until glossy; serve with pickled cucumber ribbons.
6. Roasted miso aubergine: Score the flesh, brush with miso-maple glaze, and roast until silky, then scatter toasted sesame.
7. Crispy tofu ‘katsu’ sticks: Press tofu well, coat in panko, and air fry; a quick tonkatsu-style sauce turns it into a weeknight favourite.
8. Baked feta with tomatoes & olives: Bake in a small dish; finish with basil and a drizzle of peppery oil for an instant mezze plate.
9. Grilled pineapple with chilli-lime sugar: High heat caramelises quickly; serve with yoghurt and crushed pistachio.
10. Dehydrated apple-cinnamon crisps: Slice thin, dust with cinnamon, and dehydrate for a snack that keeps for days in a jar.
11. Roast chickpeas with za’atar: Roast until dry and crunchy; shake halfway so they don’t stick together.
12. Air-fried falafel patties: Use a lightly oiled surface and give them space; they set better when the air can circulate.
13. Grilled asparagus with browned-butter crumbs: Grill fast, then toss with toasted breadcrumbs warmed in butter for restaurant texture.
14. Roast pork tenderloin with fennel seeds: Roast gently to stay juicy; rest before slicing and spoon over any pan juices.
15. Air-fried prawns with garlic and parsley: A short cook keeps them springy; finish with lemon and flaky salt.
16. Baked mac & cheese cups: Portion into a muffin tray insert; bake until the tops blister and crisp.
17. Grilled courgette ribbons, ricotta & mint: Grill ribbons briefly, then fold through ricotta, mint, and lemon for a fresh side.
18. Roast cauliflower ‘shawarma’: Coat florets with warm spices and roast until browned; serve with tahini yoghurt.
19. Air-fried chicken wings with gochujang glaze: Crisp the wings first, then toss in glaze and return briefly so it lacqueres.
20. Baked banana-oat breakfast slices: A not-too-sweet traybake that reheats well; add walnuts for crunch.
21. Grilled lamb kofta skewers: Shape around skewers, grill to a rich crust, and serve with chopped salad and yoghurt.
22. Roasted sweet potatoes with cumin & lime: Roast until edges darken; a lime squeeze keeps it bright.
23. Air-fried veggie spring rolls: Brush lightly with oil; they come out blistered and crisp without deep frying.
24. Grilled portobello ‘burger’ caps: Marinate with balsamic and soy, grill to juicy, then stack with rocket and tomato.
25. Baked cinnamon-dusted doughnuts: Use a mini mould; bake until set and roll in cinnamon sugar while warm.
26. Dehydrated tomato ‘leather’: Slow-dry seasoned purée; slice into strips for travel-friendly savoury bites.
27. Roast cod with herb crust: Press a herb-and-breadcrumb mix on top; roast until it flakes and the topping crunches.
28. Air-fried breakfast hash: Cube potatoes, onions, and peppers; finish with a cracked egg cooked to your liking.
29. Grilled peaches with vanilla bean: Grill cut-side down for markings, then serve with vanilla yoghurt or mascarpone.
30. Baked stuffed mushrooms: Fill with garlicky crumbs and herbs; bake until the caps relax and the tops brown.
31. Air-fried spiced carrot ‘fries’: Cut thick batons, dust with cumin and smoked paprika, and cook until lightly charred.
32. Roast turkey meatballs in tomato sauce: Roast meatballs first, then bake in sauce to finish; the sauce stays glossy, not watery.

Foodie Techniques

Build flavour with “two-stage” cooking

One of the easiest ways to make air-fried food taste more like restaurant food is to split the cook into two phases: first, cook to doneness; second, finish for texture. For example, roast chicken pieces until they’re nearly cooked, then switch to a hotter Air Fry blast for a final crisping surge. You get juiciness and crunch without pushing either phase too far.

Use the probe as a timing anchor

When you’re cooking a centrepiece protein, start it first and let the probe guide your schedule. As the internal temperature climbs, you can slot in vegetables or potatoes so everything lands together. It’s less stressful than juggling multiple timers and hoping the thickest part is done.

Season at the right moment

Salt early for roasts, but save delicate finishing elements—citrus zest, fresh herbs, flaky salt, grated cheese—for the end. High heat can mute aromatics; adding them after cooking keeps flavours vivid.

Make crispness easier with surface prep

Dry surfaces brown better. Pat fish skin dry, drain and towel-dry chips, and avoid wet marinades on items you want truly crisp. If you love sticky glazes, apply them late so sugars caramelise instead of burning.

Cleaning & Maintenance

A little routine here keeps results consistent—especially for grilling, where old drips can smoke on the next run.

• Cool first, then soak briefly: warm water loosens browned bits without aggressive scrubbing.
• Use soft tools: silicone tongs and non-abrasive sponges protect the ceramic coating over time.
• Mind the splatter guard: keep it clean so airflow stays unobstructed and odours don’t linger.
• Dry thoroughly: moisture trapped in crevices can lead to stale smells; air-dry before reassembly.

Troubleshooting

Most issues come down to heat management, moisture, or crowding. Here are practical fixes.

• The grill smokes more than expected: Switch to a higher-smoke-point oil and trim excess fat; wipe the splatter guard and cooking pot so old drips don’t re-burn.
• Food browns unevenly on the grill plate: Preheat fully, keep pieces similar thickness, and avoid crowding so hot air can circulate.
• Air-fried chips come out soft: Rinse starch, dry thoroughly, and cook in smaller batches; a light oil coat helps crisp.
• Chicken is browned outside but undercooked: Use the probe for internal temperature and reduce the grill setting; thicker cuts like thighs need gentler heat.
• Coating starts to stick: Avoid metal tools and aggressive scrubbers; soak the plate briefly and use the supplied brush where relevant.
• Breading falls off: Pat food dry, use a flour-egg-crumb sequence, and rest breaded items 10 minutes so the coating adheres.
• Veg gets dry in Air Fry mode: Add a teaspoon of oil, lower the temperature a touch, and shorten the cook time with a quick shake midway.
• Roasts look cooked but taste bland: Salt earlier and rest after cooking; finishing salt and an acidic squeeze (lemon, vinegar) wakes flavours up.
• Baked items brown too quickly on top: Use a smaller dish, lower temperature, and consider covering loosely with foil for the first half.
• Probe readings seem off: Insert horizontally into the thickest part, away from bone and large fat seams; ensure the tip reaches the centre.
• ‘Add Food’ message appears unexpectedly: If you skipped preheat, ignore the prompt and continue; otherwise close the lid firmly so the cycle continues.
• Dehydrate results feel leathery, not crisp: Slice thinner and extend time; high-water fruits need longer at a steady low heat.
• Food tastes ‘fried’ but not crunchy: Dry the surface and add a pinch of baking powder to chicken skin or wing rub to enhance blistering.
• Basket/pot smells after fish: Run a short high-heat cycle with lemon slices, then wash; store with the lid slightly open so moisture dissipates.
• Unit won’t start: Check the lid is fully latched and the cooking pot is seated; power-cycle at the outlet if the display froze.
• External surfaces feel hot: Keep the required clearance and avoid pushing the back against a wall; heat needs space to vent safely.

Comparisons

This section sticks to verifiable differences that matter in daily cooking: layout, capacity, temperature limits, and the kind of meals each model is built to handle.

Ninja EG351EU vs Ninja SL400EUWH (Double Stack XL)

If you want two independently controlled cooking drawers and a larger total capacity (9.5 L across two 4.75 L drawers), the SL400EUWH is the more “family buffet” tool. The EG351EU answers a different problem: indoor grilling with a probe and a pot-based format.

Ninja EG351EU vs Ninja SL400EU (same Double Stack platform)

The SL400EU shares the same Double Stack format and headline capacity with the SL400EUWH. If the vertical two-drawer concept is what you want, choose based on the variant available in your market and the finish that fits your kitchen.

Ninja EG351EU vs Ninja EG351UK (UK model code)

In the UK, you’ll often see the same concept sold under the EG351UK code. For shoppers who cross-shop markets, it’s a helpful reference point: the core 5.7 L format and the included probe-driven cooking approach remain the draw.

FAQ

Buyer Guidance

Measure for airflow, not just footprint

Because it cooks with a fan and a high-heat grill plate, it needs breathing room. Leave space around the unit so heat can vent properly and the lid can open comfortably.

Choose it for the kind of food you actually cook

If your idea of a perfect weeknight meal includes grilled chicken, burgers, seafood, or vegetables with real sear, this model’s grill-first design earns its keep. If your routine is mostly frozen snacks for a crowd, a large dual-drawer air fryer may fit your rhythm better.

Plan a simple accessory kit

A small bake tin that fits the cooking pot, silicone-tipped tongs, and an instant-read thermometer (as a secondary check) cover almost every scenario. The included probe does the heavy lifting for proteins.

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Conclusion

The Ninja EG351EU is a confident choice for cooks who want indoor grilling with the convenience of hot-air crisping—and who appreciate a probe that turns “is it done?” into a clear yes/no moment. Treat it like a compact grill station, keep it clean, and you’ll get fast, flavour-forward meals that feel more intentional than basic basket air frying.

If you’re building out your kitchen playbook, you may also like:

• Choosing oils for high-heat air frying and indoor grilling
• Chicken thighs: crisp skin without drying the meat
• Vegetables in hot air: browning, blistering, and balance

Sources

• Ninja (manufacturer): EG351EU product page
• EG351EU instructions manual (PDF)
• Vanden Borre (retailer): Ninja EG351EU listing