I first made Mustard Sauce with Chicken but this sauce is also good with steak. This recipe will make enough sauce for about four people. Mustard Cream Sauce Steven Thomas Print Recipe Ingredients 2 T oil1 small onion chopped1 tablespoon mustard hot2 tablespoons mustard with seeds1 cup white wine or half and half water and wine250 ml cream100 grams butter or margarine Instructions Heat oil in a frying panAdd onion to panFry ...