Easy Chicken with cornstarch

1 tablespoon butter 1/2 medium onion , finely chopped 1 small green apple , peeled, cored and finely diced 1 garlic clove , finely chopped 1 tablespoon[...]

4 -6 chicken breasts , pounded thin flour 2 -4 tablespoons butter 2 -3 garlic cloves 8 ounces sliced mushrooms 3/4 cup marsala wine 2 cups water 2 beef[...]