Moist Hot Cocoa Cake Recipe with Chocolate Frosting

This easy Hot Cocoa Cake is an ideal holiday dessert — rich, festive, and simple to make. A chocolate poke cake with a gooey marshmallow filling and a hot-cocoa flavored whipped topping, it’s designed to please kids and adults alike. With just a boxed chocolate cake mix, a few pantry staples, marshmallow fluff, and a couple of special touches (Kahlua for deeper chocolate notes and espresso powder to boost the cocoa flavor), you’ll have an impressive Christmas or Christmas Eve treat that’s quick to prepare and full of cozy flavor.

Hot Cocoa Cake EASY
Hot Cocoa Cake slice

🗒 More Delicious Poke Cake Recipes

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Video

Short how-to video demonstration available for reference in the original recipe post.

A dessert topped with whipped cream, drizzled with chocolate syrup, and decorated with maraschino cherries.

EASY Hot Cocoa Cake Recipe

This Hot Cocoa Cake takes a boxed chocolate cake and elevates it with a warm marshmallow filling and a whipped topping flavored like rich hot cocoa. It’s a poke cake that’s both comforting and festive — perfect for holiday gatherings, cookie exchanges, or any time you want an easy dessert that looks and tastes special.

Course
Dessert
Cuisine
American
Servings
8 people

Ingredients

  • Cake
  • 1 box (15.25 oz) chocolate fudge cake mix
  • 3 eggs
  • 1/2 cup oil
  • 1 cup water + 1/2 cup Kahlua (replaces the 1 1/4 cups water on the box)
  • Marshmallow Filling
  • 1 container (16 oz) marshmallow fluff
  • 1/4 cup water
  • Hot Cocoa Whipped Topping
  • 2 cups heavy cream
  • 1/2 teaspoon espresso powder
  • 2 packets hot chocolate mix (0.73 oz each)
  • 1 teaspoon vanilla extract
  • Finishing Touches
  • Warm hot fudge, for drizzling
  • Maraschino cherries, for garnish

Instructions

  1. Preheat and prepare: Preheat your oven to 350°F. Grease a 9×13-inch baking dish.
  2. Make the batter: Prepare the cake batter according to the box directions, but replace the box water with 1 cup water plus 1/2 cup Kahlua. (If you prefer, omit the Kahlua and use 1 1/4 cups water.) Add the eggs and oil as directed on the mix.
  3. Bake: Pour the batter into the prepared 9×13 pan and bake 30–35 minutes, or until a toothpick inserted near the center comes out with moist crumbs but not wet batter. Follow the box timing if it differs.
  4. Warm the marshmallow filling: During the last 5 minutes of baking, combine the 16 oz marshmallow fluff and 1/4 cup water in a microwave-safe bowl. Heat in 20-second intervals, stirring between each, until the mixture loosens and becomes pourable.
  5. Poke the cake: When the cake comes out of the oven, use the handle of a wooden spoon to poke holes all over the surface. Poke about 3/4 of the way down — do not poke all the way through.
  6. Add the marshmallow: Pour the warm marshmallow mixture evenly over the cake, focusing on filling the holes so the filling soaks in and creates pockets of gooey marshmallow.
  7. Chill: Refrigerate the cake for about 1 hour to cool and set before adding the whipped topping.
  8. Make the hot cocoa whipped topping: In a large bowl, combine 2 cups heavy cream, 1/2 teaspoon espresso powder, 2 packets hot chocolate mix, and 1 teaspoon vanilla. Use an electric mixer to whip until stiff peaks form. Continue mixing until the cream is fully whipped and holds its shape.
  9. Assemble: Spread the whipped topping evenly over the chilled cake. Warm hot fudge and drizzle or swirl it across the top, then garnish with maraschino cherries.
  10. Serve: Slice and serve chilled. Enjoy — Merry Christmas!

Notes

  • Hole depth: Poke holes about 3/4 of the way through the cake so the marshmallow mixture soaks in without leaking through the bottom.
  • Kahlua: The Kahlua adds depth to the chocolate flavor and most of the alcohol will bake off. It can be omitted if you prefer a non-alcohol version.
  • Pan size: Use a 9×13-inch baking dish for best results.
  • Make-ahead: You can prepare the cake and marshmallow layer a day ahead, refrigerate, then whip the topping and finish the cake the next day for fresher whipped cream.
  • Storage: Store covered in the refrigerator for up to 3 days. The texture is best when eaten within the first 48 hours.
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