How long to cook butternut squash in an air fryer

At-a-glance cooking parameters

Temperature

400 °F

204 °C

Total time

18 min

per single layer

Shake at

9 min

shake once

Internal temp

—

use visual cue

Butternut squash cubes roast in 18 minutes at 400 °F (204 °C) with one shake. The convection air dries the surface enough to crisp while the interior turns silky-soft — a faster, more flavourful result than the same dish in an oven.

Butternut Squash in popular air fryer brands

Adjusted for how each brand actually heats. Tap a brand name to see every food we calibrate for it.

How to tell it’s done

Cubes are deeply golden-orange with charred edges; centres yield to a fork; outsides are crisp-edged while interiors are silky.

Step-by-step method

1. 1

   Prep

   Bring ingredients close to room temperature. Toss with 1½ tablespoons olive oil — the squash needs oil to crisp.

2. 2

   Season

   Season with salt, black pepper, cinnamon, smoked paprika, maple syrup (at halfway).

3. 3

   Load

   Arrange 1 small butternut squash (about 1½ lb), peeled, seeded, cubed to 1 inch (about 5 cups) for best convection airflow.

4. 4

   Cook

   Set the air fryer to 400 °F (204 °C) and cook for 18 minutes total, shaking once at 9 minutes.

5. 5

   Check & rest

   Check the visual doneness cue and serve immediately for best texture.

6. 6

   Store

   Refrigerate up to 4 days. Excellent cold in grain bowls or reheated at 400 °F for 3 minutes.

Watch out for

• !Use a sturdy Y-peeler — butternut skin is tough and a regular peeler stalls.
• !Cut to even 1-inch cubes. Smaller pieces burn; larger pieces stay raw inside.
• !Single layer only. Stacked squash steams and stays pale.

FAQ about butternut squash in an air fryer

What temperature should I cook butternut squash at in an air fryer?

Cook butternut squash at 400 °F (204 °C). The convection air at this temperature browns the exterior quickly without drying the centre.

How long does butternut squash take in an air fryer?

Butternut squash takes 18 minutes total at 400 °F (204 °C). Shake the basket once at 9 minutes so both sides cook evenly.

Do you need to shake butternut squash in an air fryer?

Yes — shake the basket once at 9 minutes. Loose pieces (butternut squash) settle into the basket and the bottom layer stays pale unless you redistribute them halfway through.

Do you need to preheat the air fryer for butternut squash?

Preheating is optional for butternut squash — most modern air fryers reach temperature in under 2 minutes and the food's total cook time already accounts for the ramp-up. If you do preheat, reduce the total time by 1–2 minutes and check earlier than usual.