Place the cutlets on a paper towel to remove excess oil.
For the mushroom sauce:
Add 1 tablespoon of melted butter to the pan, add 1 tablespoon of flour, and fry the flour until lightly Golden. Next, add 400 ml of milk, then add the mushroom puree. Let the sauce boil until it thickens, adjust salt and ground black pepper to taste, and add garlic powder (1 teaspoon) at the end.