The Ninja DoubleStack SL300UK is a vertical-format air fryer with two 3.8L drawers stacked on top of each other. It’s designed for cooks who want the flexibility of dual-zone cooking but don’t have the counter space for a wide model. Each drawer operates independently with separate controls and supports all six cooking modes: Air Fry, Max Crisp, Roast, Bake, Reheat, and Dehydrate. It’s perfect for preparing mains and sides at the same time — without any flavour transfer — and ideal for compact kitchens or households with limited worktop space.

• 🟦 Vertical Dual-Zone Layout: Two drawers stacked to save space without losing capacity.
• 🟦 6 Cooking Functions: Air Fry, Max Crisp, Roast, Bake, Reheat, and Dehydrate.
• 🟦 Independent Controls: Each drawer has its own time and temp settings.
• 🟦 Sync & Match Functions: Finish cooking both drawers simultaneously or copy settings between them.
• 🟦 Large Capacity: 7.6L total, suitable for families of 3–4.
• 🟦 Powerful Performance: 2400W output for fast and even cooking.

The SL300UK is a unique addition to the Ninja lineup. Rather than spreading out horizontally, it builds upward — perfect for worktops with vertical clearance but limited depth. The matte black finish gives it a clean, professional look, while the central control panel between the drawers makes switching modes seamless. Drawer handles are ergonomic and stay cool during cooking. Despite the powerful heating system, the unit feels balanced and stable.

This unit offers 3.8L per drawer, adding up to a 7.6L total capacity. Each drawer fits around 1kg of chips or 4–6 chicken thighs. It’s ideal for couples or small families looking to cook mains and sides without having to swap trays halfway through. Thanks to the vertical layout, the footprint is much smaller than traditional dual-drawer models — great for flats, caravans, or minimalist kitchens.

The SL300UK is a high-powered air fryer that delivers even results across both drawers. The 2400W output ensures quick preheating and efficient heat distribution. Whether you're crisping up frozen foods or baking a small batch of muffins, the temperature accuracy is excellent. Max Crisp mode is especially useful for frozen fries and nuggets, while Air Fry mode works well for fresh veg and meats. Sync mode ensures your protein and veg are ready to plate together, which is a huge bonus for busy evenings.

The SL300UK is a high-powered air fryer that delivers even results across both drawers. The 2400W output ensures quick preheating and efficient heat distribution. Whether you're crisping up frozen foods or baking a small batch of muffins, the temperature accuracy is excellent. Max Crisp mode is especially useful for frozen fries and nuggets, while Air Fry mode works well for fresh veg and meats. Sync mode ensures your protein and veg are ready to plate together, which is a huge bonus for busy evenings.

Cleanup is refreshingly easy. Both baskets and crisper plates are non-stick and dishwasher safe. The vertical structure doesn’t trap grease the way wide models sometimes do. For best results, let the unit cool, remove the plates, and wash with mild detergent or pop them in the dishwasher. The central control panel can be wiped clean with a soft, damp cloth.

The SL300UK is available from NinjaKitchen.co.uk and occasionally listed through affiliate retailers featured on NYMag shopping guides. Prices typically range from £169 to £199 depending on seasonal offers and bundle availability. Sign up for restock alerts if out of stock — this unit sells fast due to its unique design.

• ✅ Unique vertical design saves counter space
• ✅ True dual-zone cooking in a compact format
• ✅ 2400W high-performance heating
• ❌ Taller than other models — check shelf clearance
• ❌ No smart probe or app integration

While the AF300UK and AF400UK offer wider drawers and more classic designs, the SL300UK excels in vertical efficiency. It's smaller in width but matches in performance, making it better suited to tight spaces. It doesn’t include a smart thermometer like the premium 10qt models, but the 2400W output makes up for it in speed and crispiness.

If you want powerful, independent cooking zones without sacrificing worktop space, the Ninja DoubleStack is an excellent choice. It’s designed with practicality and performance in mind — a true standout in Ninja’s lineup. Highly recommended for space-conscious families, couples, or anyone who wants to cook mains and sides at the same time without using a full-size oven.