Secret Lindy's-Style New York Cheesecake

Ingredients

• 1/4 lb. (1 stick) unsalted butter, room temperature
• 1/4 c. sugar
• 1 egg
• 1 1/2 c. flour
• 5 8-oz. pkgs. cream cheese, room temperature
• 1 3/4 c. sugar
• 3 T. flour
• 2 t. lemon peel
• 1 1/2 t. orange peel
• 1/4 t. salt
• 1/4 t. vanilla
• 5 eggs plus 2 egg yolks, room temperature
• 1/4 c. sour cream