An easy mushroom sauce is a great recipe to have in your repertoire because it's so versatile, see the tips section below for ideas. Heat the oil and butter in a frying pan and add the onion.

Remove from the oven and set aside to rest for 5 minutes. Slice and serve with mushroom sauce (recipe below) and mashed potatoes. Heat 2 tablespoons butter in a sauté pan, add the garlic and ...