Description
This Hostess Sheet Cake is a delightful chocolate dessert featuring a moist chocolate cake base layered with a fluffy marshmallow cream filling and topped with a rich chocolate ganache. Perfect for parties and gatherings, this recipe combines classic flavors with an easy-to-make no-bake filling and a luscious ganache topping, creating a show-stopping treat that serves 12.
Ingredients
Scale
Cake
- 1 box chocolate cake mix (or homemade 9×13 chocolate cake)
- ½ cup unsalted butter, softened (for cake layer preparation and filling)
Filling
- ½ cup unsalted butter, softened
- 2 cups powdered sugar
- 1 jar (7 oz) marshmallow creme
- 1 ½ teaspoons vanilla extract
- 3 tablespoons heavy cream
Ganache
- 1 cup semi-sweet chocolate chips
- ½ cup heavy cream
Optional
- White sprinkles for topping
Instructions
- Prepare the Cake: Bake a 9×13 chocolate cake according to the package instructions or your favorite homemade recipe. Allow the cake to cool completely before proceeding to the next step.
- Make the Filling: In a large bowl, beat together ½ cup of softened unsalted butter, 2 cups powdered sugar, a 7 oz jar of marshmallow creme, 1 ½ teaspoons of vanilla extract, and 3 tablespoons of heavy cream. Beat for 3 to 4 minutes until the mixture is light, fluffy, and well combined.
- Slice and Fill the Cake: Carefully slice the cooled chocolate cake horizontally into two even layers. Spread the prepared marshmallow cream filling evenly over the bottom layer, then place the top layer back on to create a filled cake.
- Prepare the Ganache: Place 1 cup of semi-sweet chocolate chips into a bowl. Heat ½ cup of heavy cream until it just begins to simmer. Pour the hot cream over the chocolate chips and let it sit for 2 minutes to soften. Stir until smooth and glossy, forming a rich ganache.
- Apply the Ganache: Pour the ganache evenly over the assembled cake, spreading it smoothly across the surface. Allow the ganache to set at room temperature or refrigerate it until firm.
- Decorate and Serve: Decorate the ganache-topped cake with white sprinkles or swirl designs if desired. Slice into servings and enjoy your decadent Hostess Sheet Cake!
Notes
- The cake must be completely cooled before slicing and filling to prevent the filling from melting.
- For a richer flavor, use homemade chocolate cake instead of a box mix.
- The ganache can be slightly warmed before spreading if it becomes too thick.
- Store the cake covered in the refrigerator and bring to room temperature before serving for best texture.
- Optional decorations like white sprinkles add a festive touch but can be omitted.
