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Ultimate Decadent Chocolate Poke Cake with Marshmallow Fluff Filling

A decadent slice of chocolate poke cake topped with whipped cream and drizzled with rich chocolate sauce.

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Make this easy, rich chocolate poke cake featuring a moist base soaked in a sweet filling and topped with gooey marshmallow fluff and hot fudge for an indulgent dessert perfect for crowds.

Ingredients

Scale
  • 1 box (15.25 oz) chocolate cake mix
  • Ingredients called for on cake mix box (usually eggs, oil, water)
  • 1 can (14 oz) sweetened condensed milk
  • 1 cup hot fudge topping, slightly warmed
  • 1 jar (7 oz) marshmallow fluff
  • 1 cup heavy cream
  • 1/4 cup powdered sugar
  • 1 teaspoon vanilla extract
  • 1/2 cup mini marshmallows (optional, for garnish)

Instructions

  1. Prepare the chocolate cake according to the package directions using a 9×13 inch baking pan. Bake until a toothpick inserted in the center comes out clean.
  2. While the cake is still warm, use the handle of a wooden spoon or a large fork to poke holes all over the surface of the cake, spacing them about 1 inch apart. Poke deep holes without going all the way through the bottom.
  3. In a bowl, mix the sweetened condensed milk and the warm hot fudge topping together until combined.
  4. Slowly pour this chocolate filling mixture evenly over the entire surface of the warm cake, allowing it to soak into the holes. Let the cake cool completely to room temperature, about 1 hour.
  5. Prepare the topping: Beat the heavy cream, powdered sugar, and vanilla extract in a medium bowl until stiff peaks form.
  6. Gently spread the marshmallow fluff over the cooled, filled cake.
  7. Spread the whipped cream evenly over the marshmallow fluff layer.
  8. If desired, sprinkle mini marshmallows over the top. You can briefly place the cake under a broiler for 30-60 seconds to toast the marshmallows, watching constantly to prevent burning.
  9. Chill the cake for at least 2 hours before slicing and serving. This allows the filling to set properly.

Notes

  • For an extra rich flavor, consider using a devil’s food cake mix instead of standard chocolate.
  • If you are making this for a potluck, this cake travels well and is best made ahead of time.
  • If you skip the broiler step, you can drizzle extra hot fudge over the whipped cream just before serving.

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