Cooked Potato Salad Dressing - cooking recipe

Ingredients

1 cup sugar
2 tablespoons flour
1 teaspoon salt
1/2 teaspoon dry mustard
2 eggs, beaten
1/2 cup vinegar
1/2 cup water
1 tablespoon butter

Preparation

Mix dry ingredients in the top of a double boiler. In a separate container, mix together water and vinegar. Add vinegar mixture and eggs to dry mixture. Stir until thickened. Add butter.