Air Fryer Sweet Potato Cubes
The sweet potato method that finally crisps. Even cubes, dry surface, and a light starch coat for clean texture.
Timing: 22 mins
Air Fryer Sweet Potato Cubes
The sweet potato method that finally crisps. Even cubes, dry surface, and a light starch coat for clean texture.
Timing: 22 mins
Key move
Cut into even 3/4-inch cubes, dry well, and use a light cornstarch coat to get crisp edges without gumminess.
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The Setup
- Air Fryer5–6 qt basket
- Mixing Bowl
- Chef's Knife8-inch
The Mise en Place
5 of 6Your prep station before cooking begins
Seasoning (0/3)
The Pantry (0/1)
Other (0/1)
My sweet potato cubes are soft, not crispy.
Ah, sounds like they might have been a little crowded in the air fryer, or perhaps they went in while still damp.
The outside is crisp, but the inside is still hard.
That usually means the cubes were cut a bit too big. We're aiming for a precise 3/4-inch for even cooking. For this batch, let's lower the temperature to 375°F (190°C) and let them…
Chef's Notes
Savory version: add 1 tsp garlic powder and 1 tsp smoked paprika. Sweet version: add 1 tsp cinnamon and finish with flaky salt (skip pepper).
Refrigerate up to 4 days. Re-crisp at 375F (190C) for 4-6 minutes.
The Method
PREHEAT
Preheat the air fryer to 400F (205C) for 3 minutes.
Air fryer is preheated and hot
CUT
Prep aheadCut sweet potatoes (2 lb) into even 3/4-inch cubes.
Cubes are uniform for even cooking
DRY
Pat the cubes dry with a towel. If you rinsed them, dry them twice.
Surface looks matte, not wet
COAT
Toss cubes with oil, then sprinkle cornstarch (1 tbsp) and toss again until lightly dusted. Add salt and optional spices and toss once more.
Light dusting, no thick white patches
ROAST
Air fry 12 minutes, shake, then cook 6-8 minutes more until browned and crisp at the edges and tender inside.
Edges crisp; centers tender when pierced
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