Lemon Sauce I

Description
Contributed by World Recipes Y-Group

Ingredients

 * ¾ cup sugar
 * 3 tablespoons flour
 * 3 egg yolks
 * ¾ cup cold water
 * 2 tablespoons butter
 * ¾ cup lemon juice
 * zest of 1 lemon
 * 1 teaspoon orange zest

Directions

 * 1) In the top of a double boiler, mix together the sugar, the flour and the egg yolks.
 * 2) Add the cold water and cook the mixture over boiling water, stirring often, until it thickens.
 * 3) Remove the double boiler from the heat, but leave the top section of the pot over the hot water.
 * 4) Add the butter a small piece at a time, stirring well after each addition.
 * 5) Add the remaining ingredients and mix well.
 * 6) This sauce may be served hot or cold.