1 Heat oven to 350°F (325°F for dark or nonstick pan). Generously grease and flour 12-cup fluted tube cake pan. Make cake batter as directed on box. Pour about 2 cups batter into pan. In 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 and cool cake as directed on box.
3 In small bowl, mix white icing ingredients. If necessary, stir in additional milk, 1 teaspoon at a time, until smooth and spreadable. Spread over cake. Sprinkle crushed candy on top. Store loosely covered.