1 cup sugar 1/4 cup lemon juice
21/2 tablespoons flour 1 egg
Grated rind 2 lemons 1 teaspoon butter
Mix sugar and flour, add grated rind, lemon juice, and egg slightly beaten. Put butter in saucepan; when melted, add mixture, and stir constantly until boiling-point is reached. Care must be taken that mixture does not adhere to bottom of saucepan. Cool before spreading.