2 cups fresh fruit, such as sliced strawberries or blueberries
HEAT oven to 350°F. Place oven rack in lower half of oven.
PREPARE cake as directed on package using the water. Remove 2 cups batter and place in medium bowl. Add lemon peel, lemon extract and food color. Mix well. Pour into 10 x 4-inch tube pan. Spoon plain batter on top of yellow. Swirl batter with knife.
BAKE 38 minutes or until dark golden brown and no longer moist or sticky. Immediately turn pan upside down onto tall narrow-necked glass bottle, such as a soda bottle. Cool completely. Remove cake from pan.
COMBINE lemon curd, whipped topping and milk in medium bowl. Serve slices of cake topped with lemon curd mixture and fresh fruit.
TIP To decorate entire cake, make dollops of lemon curd mixture on top of cake. Place several pieces of fresh fruit in each dollop. Serve with remaining lemon curd mixture and fruit.