Low-Sugar, All-Natural First Birthday Cake Rocco's first birthday cake was a great low sugar and all natural alternative to the traditional smash cake. 4 ripe bananas 3/4 cup apple sauce 3/4 cup apple sauce 1 teaspoon baking soda 1 1/2 cups whole wheat flour 3 teaspoons vanilla extract 1 teaspoon cinnamon 1/4 teaspoon nutmeg 2 eggs 1 cups (8 ounces) cream cheese 1/2 cup (4 ounces) apple sauce 1/2 cup powdered sugar 2 teaspoons pure vanilla extract