Lemon Filling

Ingredients

• 2 tablespoons butter 
• 0.3 cup cornstarch 
• 2  egg yolks slightly beaten
• 3 tablespoons juice of lemon 
• 1 tablespoon lemon rind grated
• 1 cup sugar 
• 1 cup water 

Equipment

Directions

1. Combine sugar and cornstarch; gradually stir in water. Cook over medium heat, stirring constantly, until mixture thickens and boils. Continue boiling 1 minute
2. Gradually stir one-fourth of hot mixture into egg yolks; add to remaining hot mixture, stirring constantly. Return to a boil; cook 1 to 2 minutes longer, stirring constantly.
3. Remove from heat and continue stirring until smooth. Stir in butter, lemon rind, and lemon juice. Cool.