Good-Cooking - Sour Cream Lemon Pie

Ingredients

• 2/3 cup granulated sugar
• 3 tablespoons cornstarch
• 1 cup milk
• Yolks from 3 large eggs
• 1 teaspoon finely grated fresh lemon peel
• 1/4 cup lemon juice
• 1/2 stick (1/4 cup) butter or margarine
• (not spread), cut in small pieces
• 1 cup sour cream
• One 9-inch pie shell, baked and cooled
• Whipped cream or whipped topping