Lemon Filling Recipe ingredients

• 1 cup sugar
• 3 tablespoons flour
• Grated rind of 1 large lemon
• 4 tablespoons lemon juice
• 2 teaspoons vegetable butter
• 1 egg

To prepare this Lemon Filling Recipe, first sift the sugar and the flour together, beat the egg slightly, mix all the ingredients, and cook in a double boiler until thickened, stirring often. Let cool and spread between layers of cake.