Sweet potato gratin with orange layers and a golden cheese crust
Everyday cooking Recipe

Air fryer sweet potato gratin

Air fryer sweet potato gratin with milk, cream and Gouda. Thin slices, a shallow dish and a knife test help ensure tender layers.

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Total time 49 min
Calories 498 kcal
Servings 2 servings
Difficulty Easy
By the Published Editorially approved

Why this recipe works

Check the bottom layer for tenderness

This gratin makes two side portions. A dish about 18 × 14 cm keeps the layer below 4 cm. The vegetable’s natural sweetness needs no added sugar.

Air Fryer Recipes Vegetables Cheese

Recipe

Air fryer sweet potato gratin

Air fryer sweet potato gratin with milk, cream and Gouda. Thin slices, a shallow dish and a knife test help ensure tender layers.

Ingredients

2 servings

Method

  1. 1

    Prepare

    Lightly oil the dish. Slice sweet potatoes evenly to 2 mm; a mandoline with a hand guard helps.

  2. 2

    Mix and season

    Mix milk, cream, garlic, salt and pepper. Layer slices loosely and pour the liquid evenly over them. Use a heatproof dish suitable for the appliance, leaving space around it for airflow. Do not preheat with loose paper.

  3. 3

    Cook

    If required by the manufacturer, preheat for 3 minutes at 160 °C. Cook about 25 minutes at 160 °C. Test down to the bottom layer with a small knife; if firm, continue without cheese.

  4. 4

    Check and serve

    Grate and scatter Gouda. Brown for about 6 minutes at 180 °C until all slices are tender. Take care lifting the hot dish.

Kitchen know-how

Tips for Air fryer sweet potato gratin

What matters

Uneven slices create both collapsing and firm areas in the same dish.

Serving guidance

Dark cheese does not prove the sweet potato is tender. Check before adding the topping.

Variations

How to adapt this recipe

Replace Gouda with a mature mountain cheese; adjust salt cautiously.

Add a pinch of nutmeg to the milk and cream instead of adding sugar.

Nutrition per serving

498kcal
54.7 gCarbohydrates
12.4 gProtein
23.8 gFat

Values are estimates per serving and may vary depending on the ingredients, brands, portion size and preparation method used.

Frequently asked questions

FAQ about Air fryer sweet potato gratin

Yes, very thin raw slices cook in the liquid. The knife test determines doneness.

Not with unchanged timing. A deeper layer heats more slowly.

Milk and cream are the cooking liquid. The gratin settles slightly after standing briefly.

That changes quantity, starch and cooking time. Use a dedicated potato gratin recipe instead.

Keep cooking

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