Recipe for three root gratin

Recipe for three root gratin: beetroot, parsnip and sweet potato

This colorful and flavorful gratin is a great choice for a winter meal or a holiday dinner. The unique flavors of beetroot, parsnip, and sweet potato blend beautifully in this comforting dish.

Ingredients (for 6 people):

2 medium beetroots
2 parsnips
2 medium sweet potatoes
300 ml liquid cream
200 ml milk
100 g grated cheese (Gruyere, Comté or Parmesan)
2 cloves garlic
1 knob of butter (for the dish)
Salt, pepper and nutmeg to taste