1. Cook the potatoes preferably with their skin on and the broccoli separately, washed and cut into small florets.
The broccoli should be cooked but still firm.
2. Layer the peeled and sliced potatoes (5 mm thick) and the broccoli sliced lengthwise in a gratin dish.
3. In a non-stick skillet, bring the heavy cream to a boil, then add 100 g of grated Comté cheese, reduce the heat, and add the pressed garlic clove. Season with salt, pepper to taste, and grate a little nutmeg over the mixture.
Cook gently for 3 minutes and pour over the potatoes and broccoli.
4. Sprinkle the remaining Comté cheese over the dish.
5. Bake in the oven for 15 to 20 minutes at 200°C (Th 6/7).
6. If the dish has cooled because you prepared it in advance, bake for 30 minutes at 175°C (Th 5/6) instead.