Recipe summary

Hands-on time:
25 mins. to 50 mins.
Baking time:
25 mins. to 28 mins.
Total time:
1 hrs 20 mins. to 1 hrs 50 mins.
Yield:
Two 8" or 9" round layers, one 13" x 9" x 2" cake or 24 cupcakes
Dark chocolate has long been the favorite child of pastry chefs and gourmands, but a good milk chocolate cake is hard to find. We've created this recipe for those who crave the lighter taste and creaminess of milk chocolate. The ganache that serves for the filling and icing is truly luscious. All you'll need to finish is a big glass of ice cold milk!
Volume Ounces Grams

Ganache

Cake

  • 1/4 cup vegetable oil
  • 4 tablespoons butter, softened
  • 3/4 cup sugar
  • 2 large eggs, room temperature
  • 6 ounces milk chocolate, chopped (about 1 cup) and melted
  • 1/4 teaspoon salt
  • 2 1/2 cups King Arthur Unbleached Cake Flour Blend
  • 2 tablespoons Cake Enhancer, optional but very helpful
  • 1 1/4 teaspoons baking soda
  • 1 teaspoon vanilla
  • 1/4 cup dried whole milk
  • 1/4 cup King Arthur All-Purpose Cocoa OR natural cocoa
  • 1 cup buttermilk, room temperature
  • 1 cup Marshmallow Fluff, optional for filling one layer

Directions

  1. 1) For the ganache: Place the chopped chocolate in a medium-sized bowl. Heat the cream until just boiling and pour over the chocolate. Slowly stir until completely melted and lump-free. Set the bowl in the fridge to chill while you make the cake.
  2. 2) Preheat the oven to 350F and prepare your chosen pan(s) by spritzing well with cooking spray.
  3. 3) For the cake: Place the oil, butter, sugar, and eggs in the bowl of your mixer. Beat on medium speed for 2 minutes. Stop the mixer and scrape down the bowl.
  4. 4) Add the melted milk chocolate, salt, flour, Cake Enhancer, baking soda, vanilla, dried whole milk, cocoa powder and 1/2 cup of the buttermilk. Beat on medium speed for 1 minute. Stop again and scrape the bowl.
  5. 5) Add the remaining buttermilk and beat for 30 seconds.
  6. 6) Pour the batter into the pan(s), and bake: for 8" rounds, 18 to 24 minutes; for 9" rounds, 20 to 28 minutes; for cupcakes, 15 to 18 minutes. For a 13" x 9" x 2" pan, bake 25 to 35 minutes. The cake is done when a toothpick inserted into the center comes out clean, with just a few moist crumbs.
  7. 7) Rest the cake in the pan for 10 minutes, then turn out onto a rack to cool completely.
  8. 8) To prepare the ganache: The chilled ganache should now be the consistency of chocolate pudding. Place it in the bowl of your mixer and whip with the whisk attachment until thick, light, and fluffy. Be sure to scrape the bottom of the bowl to fully incorporate all of the chocolate.
  9. 9) To assemble the cake: Using a long serrated knife, divide each cake round into two layers. Place one layer on your serving plate and spread with a 1/2"-thick layer of the whipped ganache. Add another layer of cake.
  10. 10) If you're using Marshmallow Fluff for filling, pipe a ring of ganache around the top of the second layer as a border, then fill it with 3/4 to 1 cup Fluff. The border of ganache will keep the marshmallow from oozing out the sides of the cake.
  11. 11) Add another layer of cake, another layer of ganache, and the final layer of cake. Ice the rest of the cake with the remaining ganache.
  12. 12) Serve at room temperature; refrigerate any leftovers, well-wrapped, for up to 5 days.
  13. Yield: one 8" or 9" layer cake; or one 9" x 13" sheet cake; or 24 cupcakes.

Tips from our bakers

  • No dried whole milk in the house? You can eliminate the dried whole milk and the cocoa in the cake, and use 1/2 cup instant hot chocolate mix (milk chocolate flavor) instead.
  • Don't care for Marshmallow Fluff? You can fill the center of the cake with another filling of your choice, or use all ganache if you choose.
  • While it's optional, soaking your layers in simple syrup will add moisture and flavor to your cake. Just brush 2 tablespoons simple syrup over each layer and let it soak in for 5 minutes before layering.