Combine sugar, cornstarch, lemon rind, ... and milk in heavy saucepan; cook over medium heat ... Stir in sour cream and pour filling into pie ... cream. Store in refrigerator.
DO NOT preheat oven. Grease ... In large bowl, cream butter and sugar with mixer ... mixture alternating with heavy cream, beginning and ending with ... rack and cool completely.
Combine sugar, cornstarch, lemon rind, ... and milk in heavy saucepan; cook over medium heat ... Stir in sour cream and pour filling into pie ... to help prevent scorching).