Belgian Chicken

Ingredients

• 5 tablespoons Butter
• 4 chicken legs (quartered)
• 1 onion, thinly sliced
• 1 whole head of garlic sliced in half, discard upper part
• 7 ounces button mushrooms, sliced
• 1 mushroom, studded with about 6 cloves
• 2 tablespoons all-purpose flour
• 175ml Pilsner
• 750–1,000ml crème fraiche (enough to cover the chicken)
• Salt and freshly ground black pepper