Robert's Sauce Recipe ingredients

• 1 cup Spanish Sauce
• 1 teaspoon mustard
• 4 tablespoons white wine vinegar
• ½ onion sliced
• 1 tablespoon butter
• 1 teaspoon sugar

To prepare this Robert's Sauce Recipe, first cook the onion and sugar with the butter until a golden color, add the Spanish Sauce and simmer ten minutes, then add the mustard rubbed smooth with the vinegar, stir till it comes to a boil, strain and serve.