A Fine Sauce for Steaks

Ingredients

• 1 fat (butter or beef dripping)
• 2 onions
• gravy
• flour
• vinegar
• 1 spoonful mustard
• cayenne pepper

Instructions

1. Throw into a saucepan a piece of fat the size of an egg, with two or three onions sliced, and let them brown.
2. Add a little gravy, flour, a little vinegar, a spoonful of mustard, and a little cayenne pepper.
3. Boil it and serve with the steaks.