We bake the beets the day before in foil at 200 C until tender. Meanwhile, mix all the ingredients (chop the chili, crush the garlic, heat the grains in a pan)
Peel the still hot beets and cut them into small pieces. Transfer to a jar, pour over the marinade, and leave to marinate for 3-4 hours, stirring occasionally.
The beets will be ready in a day, they can be stored for up to 10 days in the refrigerator.
Dry the baguette in the oven or grill, put the marinated beets, pour a little marinade.
Cut the cheese into thin slices, put it on top of the bar, and serve!