No special baking pan is needed to make this festive tree cake.

Festive Tree Cake

25 chocolate cream-filled sandwich cookies - divided use
1 (18.25-ounce) package white cake mix with pudding in the mix
1 1/4 cups water
1/4 cup vegetable oil
3 large egg whites
1 (4.25-ounce) tube green decorating icing
11 gummy rings, any flavor
2 tablespoons powdered sugar

1. Preheat oven to 350°F (175°C).
2. Coarsely chop 15 of the cookies.
3. Beat cake mix, water, oil and egg whites in large bowl with electric mixer on low speed just until moistened. Beat 2 minutes on high speed. Stir in chopped cookies. Pour into greased and floured 13 x 9-inch baking pan.
4. Cut 8 of the remaining cookies in half; arrange in rows in trianglular shape over batter to resemble a tree, pressing cut side of each cookie gently into batter. Place 1 of the remaining whole cookies at the top of the tree for the star and remaining whole cookie at the bottom of the tree for the trunk.
5. Bake 30 to 40 minutes or until wooden pick inserted in center comes out clean. Cool completely in pan on wire rack.
6. Carefully remove cake from pan; place on large serving tray. Decorate with decorating icing and candies as desired.
7. Sprinkle with powered sugar. Cut into 16 squares to serve.

Makes 16 servings.