1/2 c. sugar
2 tbsp. flour
1 tsp. dry mustard
Pinch salt
2 beaten egg yolks
1/2 c. milk
1/4 c. vinegar
1/4 c. cold water

Mix together all dry ingredients in medium saucepan. Add all other ingredients and mix with dry. Cook over medium heat until thick. Keep stirring while cooking. Refrigerate.