You’re probably wondering, “How hard is this to make?” The short answer: it’s easier than it looks. It’s a pizza slice cake — a playful, delicious dessert that keeps a pizza party theme going straight through to the sweet course.
We shared this on Instagram a while back and finally put together a clear tutorial. This cake makes a fun centerpiece for themed parties, birthdays, or any celebration where you want a sweet twist on a favorite food.
DIY Pizza Slice Cake
30
30
1 Cake
Ingredients
- 13 x9 Cake Use a boxed mix or your favorite from-scratch recipe
- For the Buttercream Frosting:
- 1 cup softened butter
- 3 cups powdered sugar
- 1 teaspoon vanilla extract
- 1 to 2 tablespoons milk
- Food coloring brown, orange, yellow, red
- For the Royal Icing (pepperoni):
- 3 tablespoons meringue powder
- 4 cups powdered sugar
- 5 tablespoons warm water
- Red food coloring
Instructions
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Frosting: In the bowl of a stand mixer fitted with the paddle attachment, cream the butter until smooth.
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Add the powdered sugar, vanilla, and milk. Mix on low until combined, then increase to medium and whip for about a minute.
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Divide the buttercream into bowls and tint: yellow for the “cheese,” red for the “sauce,” and a pale tan for the “crust.”
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Royal icing pepperoni: Combine the meringue powder, powdered sugar, and warm water in a mixer. Beat on medium-high for 7–10 minutes, then add red food coloring.
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Transfer the royal icing to a piping bag fitted with a medium round tip. On parchment paper, pipe many 1-inch red circles. Allow them to harden, then peel them off gently.
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Assemble the cake: Trim a 13 x 9-inch baked cake into a large triangle using a long, sharp knife.
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Apply a pale tan buttercream to cover the whole cake. Start with a thin crumb coat and chill for about 30 minutes, then add a second smooth coat.
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Spread the red buttercream over the top and slightly down the sides to mimic tomato sauce, leaving the crust exposed in the dough color. Chill briefly.
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Pipe or spread the yellow buttercream to resemble cheese, allowing some red “sauce” to show around the edges for a realistic look.
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Add a touch of darker brown buttercream to the crust for dimension if desired.
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Finish by topping the cake with the hardened royal icing pepperoni. Slice some pepperoni in half to place along the slice’s edges for a natural look.
Tried this recipe?
Mention @studiodiy or tag #studiodiy!
Photos by Jeff Mindell | Recipe by Theresa Rountree
Ready to try a pizza slice cake? This playful dessert is straightforward to assemble and makes a memorable addition to any party. Have fun with the colors and toppings to match your theme.
p.s. Make a taco cake next for another fun savory-inspired dessert.