Beef a la Colbert Beef a la Colbert Ingredients 2 6 ounces of Filet Medallions 1 teaspoon butter ½ teaspoon fresh garlic 1 ounce of fresh onions 3 ounces of sliced mushrooms 2 ounces of beef stock 1 teaspoon of flour 1 shot of red wine 1 teaspoon of A1 Steak Sauce Pinch of salt