Introduction
Welcome to dessert heaven! If you’re craving something irresistibly chocolatey, moist, and topped with a fluffy marshmallow cloud, this Marshmallow Chocolate Poke Cake is your dream come true. Imagine biting into a rich Devil’s Food cake soaked with a silky chocolate filling, crowned with a light marshmallow whipped cream, and swirled with decadent ganache. The aroma alone will have your kitchen smelling like a bakery, and the combination of textures—from the tender crumb to the gooey center and airy topping—is pure magic. Whether you’re hosting a party or treating yourself, this recipe is sure to become a favorite. Let’s dive in!
Prep Time, Cook Time, Total Time, and Servings
Prep time: 20 minutes. Cook time: 30–35 minutes (as per cake mix instructions). Total time: about 2 hours (including cooling and chilling). Servings: 12 generous slices.
Ingredients
- 1 (15.25 oz) box Devil’s Food chocolate cake mix
- Ingredients listed on the cake mix box (usually eggs, oil, and water)
- For the chocolate filling:
- 1 (14 oz) can sweetened condensed milk
- 12 oz semi-sweet chocolate chips (340 g)
- 1/3 cup heavy cream (80 ml)
- For the marshmallow whipped topping:
- 1 1/2 cups heavy cream (360 ml)
- 1/3 cup powdered sugar (40 g)
- 1 teaspoon vanilla extract
- 7 oz marshmallow fluff (about 2 cups / 200 g)
- For the chocolate ganache swirls:
- 1/2 cup chocolate chips (85 g)
- 3 tablespoons heavy cream (45 ml)
Step-by-Step Instructions
- Preheat your oven according to the cake mix instructions. Grease a 9×13 inch baking pan and prepare the chocolate cake batter as directed on the box. Pour it into the pan and bake until a toothpick inserted comes out clean. Let it cool slightly while still warm.
- Using the handle of a wooden spoon, poke holes all over the surface of the cake. Space them about 1 inch apart to ensure the filling penetrates deeply.
- In a microwave-safe bowl, combine the sweetened condensed milk, 12 oz chocolate chips, and 1/3 cup heavy cream. Microwave in 30-second intervals, stirring after each, until the mixture is smooth and glossy. Be careful not to overheat.
- Slowly pour the warm chocolate mixture over the cake, allowing it to seep into the holes. Use a spatula to spread any excess evenly across the top. Let the cake cool at room temperature for about 1 hour, then transfer to the refrigerator to chill completely.
- For the marshmallow whipped topping, pour 1 1/2 cups heavy cream into a mixing bowl. Whip on medium speed until it begins to thicken. Add the powdered sugar and vanilla extract, then continue whipping until stiff peaks form.
- Gently fold in the marshmallow fluff until the mixture is smooth and fluffy. Avoid overmixing to keep it light.
- Spread the marshmallow topping evenly over the chilled cake, covering it completely.
- To make the chocolate ganache, combine 1/2 cup chocolate chips and 3 tablespoons heavy cream in a microwave-safe bowl. Heat in short bursts, stirring until melted and smooth. Transfer to a small zip-top bag, snip a tiny corner, and pipe lines or designs over the marshmallow layer. Use a toothpick or skewer to swirl it into marbled patterns.
- Chill the cake for at least 30 minutes before slicing to allow everything to set. Serve cold for the best texture and flavor.
Pro Tips for Perfect Results
- Poke the holes while the cake is still warm to help the filling absorb better.
- Use a high-quality semi-sweet chocolate for the filling and ganache to enhance richness.
- Chill the mixing bowl and beaters before whipping the cream for faster, fluffier results.
- Fold the marshmallow fluff gently to maintain airiness in the topping.
- Let the cake chill thoroughly before adding the topping to prevent sinking.
Variations and Substitutions
Try using a dark chocolate cake mix for a deeper flavor. For a healthier twist, substitute the heavy cream in the whipped topping with coconut cream (chilled) and use a sugar-free cake mix. You can swap marshmallow fluff with homemade marshmallow cream if preferred. If avoiding dairy, use plant-based heavy cream alternatives and check cake mix ingredients for compatibility.
Storage and Reheating Tips
Store the cake covered in the refrigerator for up to 5 days. It’s best served cold, so avoid reheating to maintain texture. For longer storage, freeze slices in an airtight container for up to 2 months; thaw in the fridge before serving.
FAQ Section
Q: Can I make this cake ahead of time?
A: Yes, prepare it up to a day in advance and keep it refrigerated until serving.
Q: What if I don’t have a microwave?
A: Melt the chocolate filling and ganache ingredients in a double boiler over simmering water, stirring until smooth.
Q: Can I use homemade cake instead of a mix?
A: Absolutely! Use your favorite chocolate cake recipe baked in a 9×13 pan.
Q: Is this cake very sweet?
A: It’s rich and sweet, but the semi-sweet chocolate balances it. Reduce sugar in the topping if desired.
Q: Can I add toppings?
A: Yes, sprinkle with chocolate shavings or serve with fresh berries for a contrast.
Nutrition Estimate Per Serving
Approximately 450 calories, 6g protein, 55g carbohydrates, and 25g fat. Note: This is an estimate and may vary based on specific ingredients used.
PrintMarshmallow Chocolate Poke Cake: The Ultimate Gooey Dessert
- Total Time: 120
- Yield: 12 generous slices 1x
- Diet: Vegetarian
Description
Indulge in this rich Devil’s Food cake soaked with velvety chocolate filling and crowned with marshmallow whipped cream and chocolate ganache swirls. A moist, gooey center with airy texture contrasts beautifully in this bakery-style dessert perfect for parties or sweet cravings.
Ingredients
1 (15.25 oz) box Devil’s Food chocolate cake mix
Ingredients listed on the cake mix box (usually eggs, oil, and water | ~4 eggs and ~1/2 cup oil recommended)
1 (14 oz) can sweetened condensed milk
340 g semi-sweet chocolate chips
80 ml heavy cream (for filling)
360 ml heavy cream
40 g powdered sugar
1 teaspoon vanilla extract
200 g marshmallow fluff
85 g chocolate chips (for ganache)
45 ml heavy cream (for ganache)
Instructions
Preheat oven according to cake mix instructions. Grease a 9×13-inch baking pan
Prepare cake batter as directed on the box. Pour into pan and bake until a toothpick comes out clean
Let cake cool slightly while still warm. Using the wooden spoon handle, poke holes about 1 inch apart across the surface
Microwave 340 g chocolate chips and 14 oz sweetened condensed milk with 80 ml heavy cream in 30-second intervals, stirring after each, until smooth and glossy
Pour warm chocolate mixture over cake, letting it soak into holes. Spread excess with a spatula
Chill cake for 1 hour before adding marshmallow topping
In a mixing bowl, whip 360 ml heavy cream until thickened. Add powdered sugar and vanilla extract, continue whipping until stiff peaks form
Gently fold in 200 g marshmallow fluff until smooth and fluffy
Spread marshmallow mixture over chilled cake in even layers
In a microwave-safe bowl, combine 85 g chocolate chips and 45 ml heavy cream. Microwave in 30-second intervals until smooth, then refrigerate ganache, stirring occasionally until it thickens
Pipe or drizzle ganache across the top in decorative swirls
Chill completed cake for 1 hour before serving
Notes
Use real semi-sweet chocolate for the chocolate filling rather than candy melts for the creamiest texture
Don’t melt the chocolate and milk mixture too long to avoid graininess
Marshmallow fluff is essential for the signature airy topping – don’t substitute with marshmallows
Best served chilled, but can be refrigerated for up to 3 days
- Prep Time: 20
- Cook Time: 35
- Category: Featured
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 550
- Sugar: 55g
- Sodium: 200mg
- Fat: 32g
- Saturated Fat: 12g
- Carbohydrates: 68g
- Fiber: 1g
- Protein: 7g
- Cholesterol: 160mg


