What you need: How you do it: 1. Wash the mushrooms, drain the water and cut them into fine slices. 2. Finely chop the onion and saute in 1.5 oz (30 g) butter and 1 tablespoon oil for 4-5 minutes. 3. Add about 0.7 lbs (350 g) of the sliced mushrooms and saute them until…