Step 1

Preheat oven to 350°. Line bottoms of 2 greased 9-in. round baking pans with parchment; grease paper.

Step 2

In a large bowl, combine cake mix, cinnamon, yogurt, eggs, milk and vanilla. Beat on low speed 30 seconds. Beat on medium 2 minutes. Transfer to prepared pans.

Step 3

Bake 30-35 minutes or until a toothpick inserted in center comes out clean. Cool in pans 10 minutes before removing to wire racks to cool completely.

Step 4

Place 1 cake layer on a serving platter. Spread 1-3/4 cups whipped topping in a circle 1-1/2 in. wide around outer top edge of cake. Fill in center with 1 cup cherry pie filling. Top with remaining cake layer.

Step 5

Remove and discard 1/3 cup thickened cherry sauce from pie filling. Using some of the cherries, outline a star shape on top of cake; fill in center with remaining pie filling. Spread or pipe 1-3/4 cups whipped topping around the star. If desired, pipe remaining whipped topping around bottom edge of cake. Refrigerate at least 1 hour before serving. Store in the refrigerator.