Chocolate Marshmallow Poke Cake Recipe

If you love chocolate and crave an indulgent, crowd-pleasing dessert, this Chocolate Marshmallow Poke Cake delivers. It begins with a moist Devil’s Food cake baked in a 13 x 9″ pan, is generously soaked with a mocha ganache syrup, and finished with a fluffy marshmallow whipped cream and a decorative chocolate ganache swirl. The result is a rich, gooey, chocolate-forward dessert with a light, marshmallow-topped contrast in every bite.

Why You’ll Love This Chocolate Marshmallow Poke Cake

• Ultra-moist texture from ganache syrup that soaks into every piece.
• Light, fluffy marshmallow topping that balances the chocolate richness.
• Simple, readily available ingredients—yet bold flavor, with a hint of espresso to deepen the chocolate notes.
• Great for gatherings: parties, potlucks, birthdays, or any special occasion.
• Makes ahead easily and often tastes even better after resting overnight.

Making a Chocolate Marshmallow Poke Cake

The cake base

This dessert has four main components. Start with a Devil’s Food cake prepared according to the package directions (or use your favorite homemade chocolate cake recipe) baked in a greased 13 x 9″ baking dish. Let the cake cool on a wire rack until it is slightly warm but still easy to poke. Use a wooden spoon handle or similar tool to create holes across the surface so the syrup can penetrate the cake. Avoid using a fork—the holes need to be large enough for the ganache syrup to fill and flavor each bite.

Mocha Ganache Syrup

This pourable chocolate syrup is luxurious and easy to make. Use a 12 oz. bag of semi-sweet chocolate chips and reserve 1/3 cup for the final ganache drizzle. In a microwave-safe bowl, combine a 14 oz. can of sweetened condensed milk, the chocolate chips (minus the reserved 1/3 cup), 1/3 cup heavy whipping cream, and 2 teaspoons instant espresso granules. Heat in the microwave in 30-second bursts, stirring until the chocolate melts and the mixture is smooth and pourable. If it cools and thickens, reheat briefly to restore a pourable consistency.

Pour the warm mocha ganache syrup over the cake, making sure to fill the holes and spread a thin layer across the top. Allow the cake to cool to room temperature, then refrigerate until completely chilled before adding the next layer.

Marshmallow Whipped Cream

Chilled equipment helps produce stable whipped cream. Place your mixing bowl and beaters in the freezer for 15 minutes and keep the heavy cream cold until just before whipping. In the chilled bowl, combine 1 1/2 cups heavy whipping cream, 1/3 cup powdered sugar, and 1 teaspoon vanilla extract. Start mixing on medium and increase speed to high until stiff peaks form. Gently fold in a 7 oz. jar of marshmallow fluff until fully incorporated. Spread this marshmallow whipped cream evenly over the chilled ganache-soaked cake.

Chocolate Ganache Drizzle

For the finishing swirl, melt the reserved 1/3 cup semi-sweet chocolate chips with 2 tablespoons heavy whipping cream in short microwave intervals, stirring until smooth and glossy. Let the ganache cool slightly, then transfer to a small disposable bag or piping bag, snip a small corner, and drizzle over the marshmallow whipped cream. Use a toothpick, skewer, or the tip of a knife to create a decorative marbled swirl by gently dragging through the ganache and whipped topping.

Tips for the Best Poke Cake

• Cool slightly before poking: A warm, but not piping-hot cake holds together better while you make holes.
• Chill thoroughly: Refrigerating the cake after adding ganache helps set the layers for cleaner slices and deeper flavor integration.
• Use a skewer for decorating: A thin tool creates elegant swirls without disturbing the fluffy topping.

Frequently Asked Questions

Can I use homemade chocolate cake instead of box mix?
Yes. A robust homemade chocolate cake works beautifully as the base for this poke cake.

Can I make this ahead of time?
Absolutely. The cake often improves after chilling overnight, which allows the flavors to meld and the texture to set.

How should I store leftovers?
Cover and refrigerate for up to five days. Slice with a sharp, chilled knife for best results.

Can I omit the espresso?
Yes. The espresso deepens the chocolate flavor without making the cake taste like coffee, but you can reduce or leave it out if preferred.

Recipe Summary

Chocolate Marshmallow Poke Cake — a moist Devil’s Food cake soaked with mocha ganache syrup, topped with marshmallow whipped cream and finished with a chocolate ganache swirl. Prep time about 30 minutes, cook time about 30 minutes, plus cooling and chilling time. Serves roughly 18 slices. Rich, decadent, and ideal for celebrations or anytime you want a memorable chocolate dessert.

Key Ingredients

• 15.25 oz. box Devil’s Food cake mix (plus water, oil, eggs as directed)
• 14 oz. sweetened condensed milk
• 12 oz. semi-sweet chocolate chips (reserve 1/3 cup for the final ganache)
• 1/3 cup heavy whipping cream (plus 2 Tbsp. for ganache)
• 2 tsp. instant espresso granules (optional)
• 1 1/2 cups heavy whipping cream, 1/3 cup powdered sugar, 1 tsp vanilla
• 7 oz. marshmallow fluff

Final Thoughts

This Chocolate Marshmallow Poke Cake is an irresistible combination of velvety chocolate and fluffy marshmallow topping. It’s straightforward to prepare, makes a dramatic presentation, and stores well—making it a dependable choice for holidays, potlucks, birthdays, or when you want to treat family and friends. Enjoy the contrast of gooey ganache and light marshmallow whipped cream in every slice.

If you try this recipe, consider leaving feedback and sharing how it turned out—bakers’ tips and variations are always welcome.

Closing

This Chocolate Marshmallow Poke Cake is an excellent balance of deep chocolate flavor and airy marshmallow cream. It’s simple to assemble, stores well, and makes a memorable centerpiece for dessert tables. Enjoy baking and sharing this decadent treat with family and friends.