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Neapolitan Cake From Scratch
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Scratch Neapolitan Layer Cake

A cake with layers of chocolate, vanilla and strawberry frosted with easy American style buttercream frosting.
Course Dessert
Cuisine American
Prep Time 30 minutes
Cook Time 35 minutes
Total Time 1 hour 5 minutes
Servings 12
Author Cookie Madness

Ingredients

Chocolate Batter:

  • 3/4 cup plus 2 tablespoons 4 oz all-purpose flour
  • 3/4 teaspoons baking powder
  • 3/4 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 cup granulated sugar
  • 6 tablespoons unsweetened natural cocoa powder
  • 1/4 cup vegetable oil
  • 1/2 cup milk
  • 1 large egg at room temperature
  • 1 teaspoon vanilla extract
  • 1/2 cup boiling water or very hot coffee

Yellow Cake:

  • 1 1/4 cups plus 2 tablespoons 6 oz all-purpose flour
  • 1 1/4 tsp baking powder
  • 1/2 teaspoon salt
  • 1/3 cup unsalted butter softened -- but still cool (not melted at all)
  • 3/4 cup plus 2 tablespoons sugar
  • 1 large egg
  • 3/4 teaspoon vanilla
  • 1/2 cup plus 2 tablespoons milk

Strawberry Cake:

  • 1 1/4 cups plus 2 tablespoons 6 oz all-purpose flour
  • 1 1/4 tsp baking powder
  • 1/2 teaspoon salt
  • 1/3 cup unsalted butter softened but still cool (not melted or partially melted)
  • 3/4 cup sugar
  • 2 tablespoons dry strawberry Jell-O
  • 1 large egg
  • 1/2 teaspoon vanilla
  • 1/4 teaspoon strawberry extract optional
  • 1/2 cup plus 2 tablespoons milk

Instructions

  • Preheat oven to 350 degrees F. Have ready 3 greased and floured 9 inch round cake pans.
  • Prepare the chocolate cake first. In a mixing bowl, stir together flour through cocoa powder. Add the oil, milk, egg, vanilla and stir until well mixed. Stir in the boiling water or coffee. Beat with an electric mixer for about 30 to 60 seconds or until smooth, then pour into the pan. Bake for about 30 minutes. Let cool in pan for 10 minutes, then invert onto a rack and let cool completely.
  • While chocolate cake bakes, wash out the mixing bowl and beaters and start preparing the other two batters. Try to time it so they’re ready to go in the oven a little after the chocolate cake is ready. You don't want to let the batters sit too long.
  • For each of the two batters, measure out the flour, baking powder and salt in separate bowls. Set aside
  • Working with two mixing bowls, put the butter and sugar for each batter in a mixing bowl. With an electric mixer, cream the butter and sugar in each bowl. Add one egg to each bowl and beat until light and fluffy, then add the flavorings. To one bowl, beat in the vanilla. To the other, beat in the strawberry Jell-O, and both extracts.
  • With a big spoon or a heavy duty scraper, add the flour and milk alternately, beginning and ending with the flour, to the yellow batter and mix by hand until smooth. Batter will be thick. Repeat procedure with the strawberry batter.
  • Put the batter into two cake pans and bake at 350 for 30-35 minutes or until a toothpick inserted comes out with moist crumbs. Let cool in the pans for 10 minutes, then invert and let cool completely.
  • To assemble, frost and stack the cakes so that the chocolate is on the bottom, vanilla is in the center and strawberry is on top. Or stack it the way you want. It's not like I'm the queen of everything and you have to follow orders.
  • Frosting: Beat 3 sticks (12 oz) softened unsalted butter until smooth and creamy. Gradually add 4 ½ cups of powdered sugar. After adding about half of the sugar, add 3 tablespoons of heavy cream and continue beating in remaining sugar. Continue beating and scraping sides of bowl, adding whole milk as needed, until you reach a smooth consistency. For a sweeter frosting, add a little more powdered sugar and milk. Beat in a pinch of salt (or omit if you used salted butter for some reason).