Dark Chocolate Cupcakes with Marshmallow Frosting

3 min read September 14, 2026 Christie Troxell
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Chocolate and more chocolate make the base for these decadent chocolate blackout cupcakes. They're loaded with devil's food cake, chocolate chips, chocolate pudding, and then topped with pure white, fluffy marshmallow frosting. It's quite simple to make on the stove with just a few ingredients. Elegant enough for a black and white winter wedding, lovely hand cut black fondant hearts top off these delectable cupcake treats, which are perfect for black and white events of all types.

Recipe Time
120 to 130 min
Difficulty
Intermediate
Servings
24 Servings
Ingredients:
Makes 24 Cupcakes
  • 1 Devils Food Cake Mix
  • 1 3.4 oz Box of Chocolate Pudding Mix
  • 1/2 c. Sour Cream
  • 1/4 c. Water
  • 3 Eggs
  • 1 c. Sugar
  • 1 Jar Marshmallow Creme
  • 2 Egg Whites
  • 1/2 c. Vegetable Oil
  • Small Packaged Prepared Black Fondant
  • 1 c. Semi Sweet Chocolate Chips
Step
1

Combine the cake mix, sour cream, oil, three eggs, water and pudding mix in a mixer bowl and beat on medium speed until well combined. Add the chocolate chips by folding in with a spoon.

Dark Chocolate Cupcakes with Marshmallow Frosting step 1
Step
2

Using a small ladle or spoon, fill twenty four black cupcake liners until they are half filled with the cake batter. Bake for 35 to 45 minutes at 350 degrees and allow to cool.

Dark Chocolate Cupcakes with Marshmallow Frosting step 2
Step
3

While the house is filled with the smell of chocolate, and the cupcakes are cooling, you can use the time to prepare the fondant hearts. Roll out a small portion of black fondant onto a board and cut out twenty four hearts using a heart cutter. You can use cornstarch to prevent stickiness if you like, but be sure never to use flour or powdered sugar. These can change the consistency of the fondant and cause undesirable cracking or hardening. Allow the cut hearts to set at room temperature and they'll be easy to handle later.

Dark Chocolate Cupcakes with Marshmallow Frosting step 3
Step
4

You're ready to move on to the frosting. You'll need to have a hand mixer nearby, as well as a saucepan. Begin by adding the sugar to the saucepan.

Dark Chocolate Cupcakes with Marshmallow Frosting step 4
Step
5

Add the two egg whites and two tablespoons of water and whisk until just combined. Time to plug in the hand blender!

Dark Chocolate Cupcakes with Marshmallow Frosting step 5
Step
6

Over medium heat, continuously beat the sugar and egg white mixture untl stiff peaks form.

Dark Chocolate Cupcakes with Marshmallow Frosting step 6
Step
7

Remove the saucepan from heat and fold in the marshmallow creme until well combined. Add the marshmallow frosting mixture to a piping bag, and allow to cool for about ten minutes. Snip the end off the bag, and pipe a circle onto each cooled cupcake. Marshmallow frosting moves just a bit when you first ice with it, so be sure not to squeeze out too much or it's sure to head straight for the sides.

Dark Chocolate Cupcakes with Marshmallow Frosting step 7
Step
8

Top each cupcake with a black fondant heart and serve on pretty long trays or a white cupcake stand.

 

Be sure to see my whole White, Black and Greenery Winter WeddingFloral Hoop Wedding Centerpiece, and my Evergreen Sapling Winter Wedding Favor.  

Dark Chocolate Cupcakes with Marshmallow Frosting step 8

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