Make several incisions in the chicken flesh and insert the slivers of garlic.
Melt the butter in a large frying pan, add the chicken and fry quickly until golden brown on both sides. Add the water carefully and sprinkle with salt and pepper to taste. Cover with foil and simmer for 40 minutes until the liquid is absorbed, turning the chicken breasts once during cooking.
Meanwhile, make the cheese with the milk according to packet directions. Pour over the chicken, then add the grated cheese on top! Sprinkle with the crisps, then put under a low preheated grill for 10 minutes until golden brown.