Sweet potato, Brussels sprout and chestnut gratin

Here are three ingredients that go well together, and as they’re all in season, there’s no reason to do without them ^^.

What’s more, all three can be local. Some growers in our département (the local administrative area) and the neighbouring ones have started cultivating sweet potatoes. They turn up on the stalls in autumn and stay until the stocks run out in winter.

Preparation 15 min
Cooking 45 min
Servings serves 4
Difficulty Accessible
Seasons & months
Sweet potato, Brussels sprout and chestnut gratin

Preparation

  1. Step 1

    If need be, prepare and cook your chestnuts.

    Peel the sweet potato, wash it and cut it into large cubes.

    Remove any damaged leaves from the Brussels sprouts and wash them.

    Cook the two vegetables separately for 10 minutes in a steam oven or in a pan of lightly salted water.

    Preheat your oven to 180°C.

    Mix the sweet potato, the chestnuts and the sprouts in a lightly buttered gratin dish.

    Add slivers of Comté.

    Bake for 10 minutes at 180°C.

    Sweet potato, Brussels sprout and chestnut gratin: step 1 — If need be, prepare and cook your chestnuts.
Nutritional values per serving
Recipe for 1 person
Calories
481
kcal
Protein
16,1
grams
Carbohydrates
70,8
grams
Fat
10,6
grams
Fibre
15,9
grams
Estimated values, calculated automatically from the ingredients' nutritional data.

Recipe by

Martine Pineau

Published on 22 July 2026 All my recipes

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