1 Combine the mushrooms, garlic, bouillon cubes, onion, white wine, sherry and water in a large saucepan. Bring to a simmer and let the liquid reduce to half.2 Stir in the bread crumbs and chopped parsley and mix well. Bake in a greased casserole dish at 325F for 20-30 minutes, or used to stuff poultry.