Wash and peel the tubers, cut them into circles. Pour the milk into a saucepan, bring it to the boil, making sure it does not run away. Add chopped hard cheese and minced garlic. Heat through, stirring. Put the potatoes in, making sure that they are completely covered with milk. Cook for 10 minutes.
Place the potatoes in a baking dish, pour the milk mixture in which they cooked. Sprinkle French potatoes in milk with grated hard cheese and bake in the oven for half an hour at 180 - 190 degrees. The dish should brown.