RecipesSauceSoubise Or Onion Sauce+ Add to menuPrint recipeSauceSoubise Or Onion SauceIngredients1 cup White Sauce1 cup boiled onions finely chopped, or one cup button onions cooked wholeInstructions1To one cup White Sauce add one cup boiled onions finely chopped, or one cup button onions cooked whole. Reheat.