Decadent Dark Chocolate Raspberry Layer Cake Recipe

Thick, luxurious layers of dark chocolate cake are enhanced with a hint of raspberry emulsion, filled with a seedless homemade raspberry jam, coated in creamy raspberry buttercream and finished with a rich layer of dark chocolate ganache. This cake delivers an unforgettable first bite. With Valentine’s Day approaching, a beautiful cake like this is a lovely way to celebrate with the people you love.

When I asked on Instagram how people celebrate Valentine’s Day, answers ranged from staying in, to dining out, to keeping things simple. Before we had our two boys, my husband and I often enjoyed a quiet dinner at home or a night out. After kids arrived, those quiet dinners became rare, so we adjusted. Now we try to go out together alone either the day or week before the 14th, and spend the actual day at home as a family. We set a special table for the boys, give them chocolate hearts in the morning, and make little Valentine boxes and cards for their friends. Ryan usually brings roses and a sweet note. It’s a small, meaningful holiday for our family.

For this cake I aimed for simple elegance rather than a pink-and-red explosion. I used a dark chocolate cake as the base and added a touch of raspberry emulsion to the batter. The result was a perfect chocolate-raspberry aroma as it baked—a sign I was on the right track.

For the filling, I considered smashed raspberries but chose a jam for a smoother texture and cleaner slices. You can use store-bought jam if you prefer, but a small homemade batch works wonderfully for this size cake and leaves a little extra for toast. Both fresh and frozen raspberries are suitable. Keep in mind that a little filling goes a long way—use a modest amount between layers. If you make the jam, allow enough time for it to cool and set.

I covered the cake with a creamy raspberry buttercream that has a flavor reminiscent of those creamy raspberry candies, boosted with raspberry emulsion. Freeze-dried raspberries or a fresh raspberry compote can also be used for extra flavor. After frosting the cake in buttercream I decided it needed one more layer—an indulgent chocolate ganache coating.

I coated the entire cake in ganache rather than doing a drip. The ganache must be thick enough to spread and cooled so it won’t melt the buttercream beneath. I used a 3:1 chocolate-to-cream ratio and let it cool until easily spreadable.

To create the distinct double-frosting effect, I used two acrylic guide discs—one slightly smaller for the raspberry buttercream layer and a slightly larger one for the ganache layer. These guides help keep each layer neat and even.

For finishing touches I pressed chocolate shavings along the base and topped the cake with fresh raspberries. For clean slices, heat a sharp knife briefly over a gas stove or in hot water, slice through the chilled cake, then wipe and reheat between cuts. I often slice cakes while they’re cold and then allow individual slices to come to room temperature, covered, before serving.

My husband declared this one his favorite of all my cakes and has already requested it for his birthday—high praise indeed.

To see the cake frosted in action, watch the accompanying video embedded below.

As always, I love seeing your Baking with Blondie creations—tag @bakingwithblondie or use #bakingwithblondie on Instagram or Facebook so I can see. Happy baking!