
What are you serving for Christmas dessert? The grand finale to your epic holiday feast? I plan to bring out a big platter of Christmas cookies for our families, but there has to be something else with a major WOW factor to celebrate the day. Cranberry orange Bundt cake is awesome, white chocolate peppermint cupcakes are cute, but let’s get serious. We need a dramatic and fancy showstopper to fill these big shoes.
And I know exactly what should be on the menu.
This is a tuxedo cake. Striking black and white contrast is the idea behind this sultry beauty. “Tuxedo cake” is really for your own interpretation, as long as white and black coincide together. ♥ To me that means 3 layers of homemade chocolate cake dressed up with creamy white chocolate ganache filling and a layer of dark chocolate silk frosting so thick, it makes a fat marshmallow look like a string bean.
Remember when I shared my white chocolate peppermint cupcakes recipe and I told you I baked a chocolate cake and forgot to add the sugar? That really happened. And this is that cake.. It was, as you can imagine, completely revolting. If you’re ever wondering what chocolate cake tastes like without sugar, the answer is bitter salty cardboard.
However. When you add all the ingredients like you’re supposed to, this chocolate cake is a DREAM. A dark crumb with pronounced chocolate flavor. Each forkful is soft, velvety, and majorly moist. Nothing about this cake is for the faint of heart.
3 Parts to Tuxedo Cake
- Chocolate cake
- White chocolate ganache
- Dark chocolate silk frosting
First, the cake.
If you’ve tried my chocolate peanut butter cake or chocolate raspberry cake before, this will look familiar.. The difference between those two is the sour cream. I sub out some liquid and sub in sour cream. Why? Sour cream yields a slightly denser cake and an even moister crumb. A crumb so moist, it sticks to the fork and melts on your tongue.
I highly recommend enhancing the cake’s chocolate flavor with espresso powder. The cake will not taste like coffee at all; rather, the espresso powder adds depth to the cake’s chocolate flavor. You can find it in the coffee aisle at the grocery store or online.
In addition to buttermilk (this acid is a must!), you’ll need hot liquid in the cake batter. Why? The hot liquid encourages the cocoa powder to bloom and dissolve instead of just sitting there. For the hot liquid, I highly recommend hot coffee. Again, the cake will not taste like coffee! 🙂 Or you can use hot water.
Natural cocoa or dutch-process? Use natural cocoa. Remember the difference between Dutch process vs natural cocoa powder?
And now the white chocolate ganache.
Just like regular chocolate ganache, white chocolate ganache requires just two ingredients: real white chocolate and heavy cream. With only 2 ingredients, make sure you’re using the right ones. And the best possible ones, too! Use quality chocolate to ensure a smooth and delicious (!!) white chocolate ganache. And reach for heavy cream to produce a stable ganache.
Warm the heavy cream, pour over chocolate, stir to combine, then let it completely cool into thick and smooth ganache. This stuff is dangerously creamy!!! We’ll spread it between the cake layers.
Finally, the dark chocolate silk frosting.
It starts as a basic buttercream, then transforms into a frosting so rich, it should be illegal. A smidge of corn syrup creates a silky texture and shine. Don’t have corn syrup? Use honey instead. Since there’s no leavening occurring, you can use either natural or dutch-process cocoa powder. Since you need it for the cake batter, natural cocoa powder is probably most convenient. I had a container of Hershey’s special dark cocoa, so I used some of that. Whichever cocoa powder you choose, the frosting will still be silky and shimmery.
Serve with fresh raspberries, sprigs of mint, and any leftover white chocolate ganache that you didn’t use (or eat). Christmas dinner deserves a black tie ending!

Tuxedo Cake Recipe
Ingredients You’ll Need
Instructions
- Preheat the oven to 350°F (177°C). Grease three 9-inch round cake pans, line with parchment paper rounds, then grease the parchment paper. Parchment paper helps the cakes seamlessly release from the pans..)
- Whisk the flour, cocoa powder, sugar, baking soda, baking powder, salt, and espresso powder (if using) together in a large bowl. Set aside. Using a handheld or stand mixer fitted with a whisk attachment (or you can use a whisk) mix the oil, eggs, sour cream, buttermilk, and vanilla together until combined. Pour the wet ingredients into the dry ingredients, add the hot water or coffee, and whisk or beat it all until the batter is completely combined.
- Divide batter evenly between 3 pans. Bake for 21-25 minutes. Baking times vary, so keep an eye on yours. The cakes are done when a toothpick inserted in the center comes out clean.
- Remove the cakes from the oven and set on a wire rack. Allow to cool completely in the pan.
- so it can cool and be ready at the same time. Place chopped white chocolate in a bowl. Heat the cream in a small saucepan until it begins to gently simmer. (Do not let it come to a rapid boil—that’s too hot!) Pour over white chocolate and stir until completely combined and chocolate has melted. Cover and refrigerate until it’s thick and a spreadable consistency, about 1-2 hours. You don’t want it runny.
- In a large bowl using a handheld or stand mixer fitted with a paddle or whisk attachment, beat the butter on high speed until creamed, about 2 minutes. Add 4 cups confectioners’ sugar, the cocoa powder, milk/cream, corn syrup, vanilla, and salt. Beat on low speed for 30 seconds, then switch to high speed and beat for 2 minutes until combined and smooth. If you want the frosting a little thicker, add the extra 1/2 cup of confectioners sugar. (I add it.)
- Place 1 cake layer on your cake stand, cake turntable, or serving plate. Evenly cover the top with 1/2 of the white chocolate ganache. Top with 2nd layer and evenly cover the top with remaining ganache (if there is too much ganache, serve a dollop/spoonful with each slice!). Top with the third cake layer. Spread the frosting into a thick layer all over the top and sides. Garnish with raspberries and mint, if desired. Refrigerate for at least 45 minutes before slicing or else the cake may gently fall apart as you cut.
- Cover leftover cake tightly and store in the refrigerator for 5 days.