Heat butter in a small pan, add the onion and cook for 3 minutes.

Heat butter and 1 tablespoon olive oil in a skillet.

Heat butter in a large, heavy skillet until it turns amber.

Heat butter and two tablespoons of the olive oil in a large skillet.

Heat butter in a pan, and fry mushrooms for about 10 minutes, then season to taste.

Heat butter in a heavy skillet and add cauliflower pieces.

Heat butter and oil in a large skillet over medium heat.

Heat butter in large skillet and saute crabs, starting with the top side down, for two minutes.

Heat butter and oil in a large sturdy saucepan.

Heat butter in 2-quart saucepan over medium heat until golden brown.