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milka cupcake
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5 from 2 votes

Chocolate Cupcakes with Milka Oreo Ganache Filling & Buttercream Frosting


Cupcake Ingredients

  • 3 ounces semi-sweet chocolate chopped
  • 3/4 cup cocoa powder
  • 1 cup strong hot coffee
  • 1 3/4 cup all purpose flour
  • 1 teaspoon salt
  • 1 teaspoon baking soda
  • 1 cup vegetable oil
  • 1 cup sugar
  • 1.5 teaspoons vanilla extract
  • 1 cup buttermilk
  • 3 eggs

Ganache Filling Ingredients

  • 1 Milka Oreo candy bars
  • 1 cup semi-sweet chocolate chips
  • 3/4 cup heavy whipping cream

Frosting Ingredients

  • 2 Milka Oreo candy bars
  • 1 cup unsalted butter room temperature
  • 4-6 cups powdered sugar
  • Salt



  • Preheat oven to 350 degrees. Line cupcake pans with paper liners.
  • In heat proof bowl, pour coffee over cocoa and chopped chocolate. Let sit for 2-3 minutes, then whisk together. Set aside.
  • In mixing bowl, whisk together flour, baking soda, and salt. Once mixed, add in chocolate/coffee mixture, oil, sugar, vanilla, buttermilk, and eggs. Beat until combined. Batter will be very thin. Do not over mix.
  • Fill cupcake lines 2/3 full. Bake for 18-20 minutes until toothpick comes out with just a few crumbs. Do not over bake.


  • Place Milka Oreo candy bar and chocolate chips in a heat proof bowl.
  • Put heavy cream in a microwave safe dish and microwave on high until cream starts to boil, about 45 seconds.
  • Pour heavy cream over chocolate & candy and cover bowl with plastic wrap. Let sit for 5 minutes.
  • After 5 minutes, whisk until smooth and let sit for 2-3 minutes before using.


  • Melt Milka Oreo bars in small pot on stove over low heat. Stir frequently. Once melted, remove from heat to cool.
  • Use mixer to beat butter until light and fluffy, about 5 minutes.
  • Beat in powdered sugar 1/2 cup a time, scraping down sides as needed.
  • Add vanilla and salt.
  • Mix in cooled candy bars.
  • Mix in cream, 1 tablespoon at a time, until desired consistency reached.


  • Remove centers of cupcake. I use this cupcake corer (Amazon affiliate link) from Wilton, but you can also use a small spoon or knife to core out a 3/4 inch area about 1/2 down through the cupcake.
  • Fill cupcake centers with ganache.
  • Top cupcakes with frosting.
  • If desired, grate bar, and dust over cupcakes.