Hostess Sheet Cake

Hostess Sheet Cake

from mymessykitchenn.com
50 min

This incredibly chocolatey and delicious sheet cake is a take on the nostalgic Hostess cupcake we all grew up eating. The fudge frosting, paired with the creamy marshmallow filling and moist chocolate cake makes for the perfect bite!

Ingredients

  • 2 cups granulated sugar
  • ¼ cup salted butter (melted)
  • ¼ cup vegetable oil
  • 1 tsp vanilla extract
  • 2 eggs (room temperature)
  • ¾ cup cocoa powder
  • 1 ¾ cup all-purpose flour
  • 2 tsp baking soda
  • 1 ½ tsp baking powder
  • ½ tsp salt
  • 1 cup brewed strong coffee
  • 1 cup whole milk
  • 14 oz marshmallow fluff
  • 1 cup salted butter (room temperature)
  • 3 ½ cups powdered sugar
  • 2 tsp vanilla extract
  • 2-4 tbsp whole milk or heavy cream (room temperature)
  • ¼ tsp salt
  • 1 cup salted butter (room temperature)
  • 4 ½ cups powdered sugar
  • ¾ cup cocoa powder
  • ½ cup whole milk (room temperature)
  • 1 tsp vanilla extract
  • ¼ tsp salt

Directions

  1. 1

    Preheat the oven to 350° Grease and line a 9x13 metal baking pan with parchment paper and set aside. In the bowl of a stand mixer combine the melted butter, granulated sugar, vegetable oil, vanilla extract and eggs. Mix on medium until combined.

  2. 2

    In the bowl of a stand mixer beat the butter and marshmallow filling until smooth, about 1 minute. Add in the vanilla extract, powdered sugar, salt and milk. Add more milk if needed to reach desired spreading consistency. Set aside until assembly.

  3. 3

    In the bowl of a stand mixer cream the butter, powdered sugar and cocoa powder until combined. Add in the vanilla, milk and salt and beat until smooth. Set aside until assembly.

  4. 4

    Once the cake has completely cooled, flip the cake out of the pan. Use a serrated knife to slice the cake in half length wise, trying to make the cut as even as possible.