Hostess Sheet Cake

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Imagine the nostalgia of biting into a classic Hostess cupcake—but in sheet cake form, with layers of rich chocolate cake, creamy filling, and smooth ganache frosting. This Hostess Sheet Cake transforms the beloved snack into a party-ready dessert that’s bold, chocolatey, and layered with cream-filled magic. Whether you’re baking for a birthday bash, family gathering, or simply craving that iconic taste, this cake brings it all.

Each bite delivers that signature Hostess experience: ultra-moist chocolate layers wrapped around a velvety filling that’s light, creamy, and just the right amount of sweet. Topped with a luscious layer of glossy ganache and a few nostalgic sprinkles, it’s an irresistible twist on the snack cake we all secretly love. And the best part? It’s way easier to make than it looks.

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What Kind of Chocolate Cake Should I Use?

You can absolutely use your favorite boxed chocolate cake mix for this Hostess Sheet Cake—it saves time and still yields a delicious result. But if you want to go the extra mile, a homemade buttermilk chocolate cake will take things to another level. The moisture and depth from the buttermilk really pair beautifully with the creamy filling. Either way, make sure the cake is fully cooled before adding the filling and ganache.

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Ingredients for the Hostess Sheet Cake

Chocolate Cake – This forms the rich, fudgy base of the sheet cake. Use a boxed mix or a scratch-made recipe—whatever fits your time and taste.

Butter – Unsalted butter adds richness to both the creamy filling and ganache topping.

Powdered Sugar – For the signature sweet, fluffy texture in the cream filling.

Marshmallow Creme – The secret to that iconic Hostess-style cream filling. It’s light, sweet, and whips up beautifully.

Vanilla Extract – A dash adds depth and aroma to the filling.

Heavy Cream – Used to soften and whip the filling as well as to make the ganache smooth and shiny.

Semi-Sweet Chocolate Chips – Melted down with cream to make a silky ganache that’s poured on top for that iconic glossy finish.

White Sprinkles (Optional) – Add the finishing touch to replicate that familiar Hostess look.

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How To Make the Hostess Sheet Cake

Step 1: Bake the Cake Base

Prepare a 9×13 chocolate cake using either a boxed mix or your favorite homemade recipe. Allow the cake to cool completely in the pan before moving on to the filling.

Step 2: Whip the Cream Filling

In a large bowl, beat together softened butter, powdered sugar, marshmallow creme, vanilla extract, and a splash of heavy cream until fluffy and smooth. This should take about 3 to 4 minutes with a hand mixer.

Step 3: Slice and Fill

Carefully cut the cake in half horizontally (a serrated knife works best). Spread the cream filling evenly across the bottom layer, then gently place the top half back over the filling.

Step 4: Make the Ganache

In a small saucepan or microwave-safe bowl, heat heavy cream just until simmering. Pour it over the chocolate chips in a separate bowl and let sit for 2 minutes. Stir until smooth and glossy.

Step 5: Glaze the Cake

Pour the ganache over the top of the cake, spreading it evenly with an offset spatula. Allow the ganache to set at room temperature or chill slightly in the fridge for quicker setting.

Step 6: Decorate

Finish with white sprinkles or piping if you’d like to mimic the classic Hostess swirl. Slice and serve!

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How to Serve and Store Your Hostess Sheet Cake

This cake is a showstopper served chilled or at room temperature. Slice into generous portions to show off the cream filling, and pair it with a tall glass of cold milk for the full nostalgic experience. Perfect for potlucks, birthdays, or just a weekend baking adventure.

To store, keep any leftovers covered in the refrigerator for up to 5 days. You can also freeze the cake (preferably before adding the ganache) by wrapping tightly in plastic and foil for up to 1 month. Thaw overnight in the fridge before glazing and serving.

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Frequently Asked Questions

Can I use a different type of frosting instead of ganache?

Yes! If ganache isn’t your thing, a simple chocolate buttercream works beautifully here. But ganache gives that smooth, glossy finish that’s true to the Hostess vibe.

Is it okay to make the cake a day ahead?

Absolutely. In fact, the flavor improves overnight. Just wait to add the ganache until the day you serve it.

Can I double the filling for extra creaminess?

Definitely! Just be careful when slicing and stacking to avoid too much squish-out.

How do I cut the cake cleanly?

Use a sharp knife dipped in hot water and wiped clean between slices for the neatest results.

Can I make this into cupcakes instead?

Yes—just use the same components and fill each cupcake with cream before topping with ganache. Great for individual servings!

What if I don’t have marshmallow creme?

You can substitute whipped cream cheese sweetened with powdered sugar, though it will be less authentic in flavor.

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Want More Cake Ideas with a Twist?

If you love this nostalgic Hostess Sheet Cake, you might fall in love with these sweet creations too:

• Gooey Cinnamon Roll French Toast Casserole for a decadent brunch treat.
• Triple Chocolate Banana Bread if you’re craving chocolate-on-chocolate satisfaction.
• Cinna Bun Cake for those warm cinnamon-sugar cravings in cake form.
• Strawberry Cheesecake Cupcakes with a fruity twist.
• Pineapple Upside Down Cake Fudge if you’re into creative retro-inspired desserts.

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Save This Pin + Share Your Results

📌 Save this recipe to your Pinterest dessert board so you can come back to it any time.

And let me know in the comments how yours turned out! Did you go all-in on the filling? Try a swirl design on top? I love seeing your variations, so don’t hold back. Got questions? I’m here for them.

Follow me on Pinterest for more delicious twists like this: Life with Nina Recipes

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