Lillian'S Mustard Sauce - cooking recipe

Ingredients

2 eggs, well beaten
2 tsp. sugar
2 tsp. ground mustard
1/2 tsp. salt
dust of cayenne pepper
6 tsp. butter
6 tsp. vinegar

Preparation

Stir the well beaten eggs, sugar, mustard, salt and cayenne. Cook in top of double boiler over medium flame.
Stir constantly until starts to become creamy. When thickens, remove from heat and add the butter and vinegar.