Lemon Filling
["1 1/4 c. sugar", "1/3 c. cornstarch", "1/3 c. lemon juice", "3 egg yolks", "1 1/2 c. boiling water", "1/2 c. butter or oleo"]
["Mix sugar, cornstarch, lemon juice and egg yolks.", "Slowly add boiling water.", "Add butter or oleo."]
["sugar", "cornstarch", "lemon juice", "egg yolks", "boiling water", "butter"]