Ingredients

1-1/2 cups graham cracker crumbs1 tablespoon brown sugar2 teaspoons baking cocoa1/8 teaspoon salt5 tablespoons vanilla yogurt or plain yogurtFILLING:3 packages (8 ounces each) cream cheese, softened1-1/2 cups sugar1 can (15 ounces) pumpkin1/4 cup reduced-fat sour cream2 tablespoons all-purpose flour1 teaspoon vanilla extract1/2 teaspoon ground cinnamon1/4 teaspoon ground ginger1/8 teaspoon ground nutmeg1/8 teaspoon ground cloves3 large eggs, room temperature, lightly beaten1 large egg yolk, room temperature

Preparation

Preheat oven to 350°. In a small bowl, mix cracker crumbs, brown sugar, cocoa and salt; stir in yogurt. Press onto bottom of a greased 9-in. springform pan. Place pan on a baking sheet. Bake 10 minutes. Cool on a wire rack. Reduce oven setting to 325°.

In a large bowl, beat cream cheese and sugar until smooth. Beat in pumpkin, sour cream, flour, vanilla and spices. Add eggs and egg yolk; beat on low speed just until blended. Pour into crust. Return pan to baking sheet.

Bake 1-1/4 to 1-1/2 hours or until center is almost set. Cool on a wire rack 10 minutes. Loosen sides from pan with a knife. Cool 1 hour longer. Refrigerate overnight, covering when completely cooled.

Remove rim from pan.