Candy Cane Cake          | 1 |  box Betty Crocker® SuperMoist® white cake mix |     |  Water, vegetable oil and egg whites called for on cake mix box |    | 1/2 |  teaspoon red food color |    | 1/2 |  teaspoon peppermint extract |       | 1 |  cup powdered sugar |    | 1 |  tablespoon milk or water |    | 1/2 |  teaspoon vanilla, if desired |        |  Crushed candy canes or crushed hard peppermint candies, if desired |         | 1. |  Heat oven to 325°F. Generously grease and flour 12-cup fluted tube cake pan. Make cake batter as directed on box. Pour about 2 cups batter into pan. Into small bowl, pour about 3/4 cup batter; stir in food color and peppermint extract. Carefully pour pink batter over white batter in pan. Carefully pour remaining white batter over pink batter. |    | 2. |  Bake as directed on box or until toothpick inserted in center comes out clean. Cool 10 minutes. Turn pan upside down onto cooling rack or heatproof serving plate; remove pan. Cool cake completely, about 1 hour. |    | 3. |  In small bowl, mix icing ingredients. If necessary, stir in additional milk, 1 teaspoon at a time, until smooth and spreadable. Spread icing over cake. Sprinkle top with crushed candy. Store loosely covered. |      |