Chocolate Raspberry Cake
Chocolate Raspberry Cake is a layered dessert combining rich chocolate cake layers with a fresh raspberry filling and a cocoa-based frosting incorporating that filling. The cake layers are moist and tender, baked with cocoa powder and buttermilk, while the raspberry filling provides a tart contrast. The frosting is creamy with chocolate and raspberry flavors, sometimes finished with optional ganache for decoration.
Ingredients
Cake
- 1 ¾ cups all-purpose flour
- 1 cup granulated sugar
- 1 cup light brown sugar firmly packed
- ¾ cup dark cocoa powder
- 1 ½ teaspoons baking soda
- ¾ teaspoon table salt
- ⅔ cup neutral cooking oil
- ½ cup butter melted, unsalted
- 2 egg room temperature preferred, large
- 2 teaspoons vanilla extract
- 1 cup buttermilk room temperature preferred
- ½ cup water very hot/boiling; or hot coffee
Raspberry Filling
- ½ cup granulated sugar
- 3 Tablespoons cornstarch
- 3 cups raspberries fresh or frozen
- 3 Tablespoons water
- 1 ½ Tablespoons lemon juice
Chocolate Raspberry Frosting
- 1 cup butter softened, unsalted
- 3 cups powdered sugar
- ⅔ cup cocoa powder natural
- ⅛ salt heaping teaspoon
- ⅓ cup raspberry from above, filling
- 1-2 Tablespoons heavy cream as needed
- ganache optional, for decorating drip
Instructions
Cake
- Preheat oven to 350F (175C) and line the bottoms of three 8” round cake pans with parchment paper and grease and flour the sides. Set aside.
- In a large mixing bowl, whisk together flour, sugars, cocoa powder, baking soda, and salt.
- Add oil and melted butter to flour mixture, stir until fully combined.
- Add eggs and vanilla extract and stir until fully combined and batter is uniform.
- Gradually add buttermilk, stirring until combined.
- Slowly and carefully, add hot water or coffee, stirring until completely combined. Scrape sides and bottom of the bowl with a spatula to ensure all ingredients get incorporated.
- Divide batter evenly into prepared cake pans and bake in preheated 350F (175C) oven for 24-25 minutes. When cakes are finished baking, a toothpick inserted into the center should come out completely clean or with a few moist crumbs.
- Allow cakes to cool in their pans for 10-15 minutes, then run a knife along the edges to loosen from pans and carefully invert onto cooling racks. Allow to cool completely before decorating.
- While cakes are cooling, prepare the raspberry filling.
Raspberry Filling
- In a small saucepan, combine sugar and cornstarch, whisk until combined.
- Add raspberries, water, and lemon juice and stir together.
- Heat saucepan on your stovetop over medium heat and cook, stirring constantly, until berries release their juices and mixture starts to bubble. This can take 5-10 minutes, do not increase your heat from medium, you want everything to heat slowly.
- Continue stirring constantly and cook until thickened (this usually takes me about 2 minutes after the mixture begins bubbling). This mixture will appear to only slightly thicken, you’ll notice that when you pull your spatula through the mixture you leave a trail.
- Transfer mixture to a heatproof container and allow to cool to room temperature before proceeding.
Raspberry Frosting
- In a large mixing bowl (or the bowl of your stand mixer with a paddle attachment) use an electric mixer to beat butter on low speed until smooth and creamy.
- Add about half of the powdered sugar, cocoa powder, and salt and beat on low speed until well combined.
- Gradually add remaining powdered sugar, mixing on low speed, until all sugar is added.
- While mixing on low speed, add ⅓ cup of the raspberry filling, a heaping spoonful (about a tablespoon) at a time, until all filling is evenly incorporated.
- Gradually add heavy cream as needed and stir until icing is a smooth, pipe-able consistency. Place frosting into a piping bag with a large open tip.
Assembly
- Once cakes are completely cooled, level cakes if needed.
- Place one cake layer on serving platter. Spread a very thin layer of frosting over the top of the cake layer. Pipe a dam of frosting around the edge of the cake.
- Spread half of your remaining raspberry filling inside the piped dam. Top with the next layer of cake and repeat the process.
- Top with the last layer of cake. Use the rest of the frosting to spread an even layer around the sides and top of the cake. (I like to do a crumb coating on the cake and refrigerate for 15 minutes before doing the final layer of frosting). If desired, follow my instructions (linked in the ingredients above) for adding a ganache drip.
- For best results, chill cake in the refrigerator for at least 30 minutes before slicing and serving.
Notes
- The raspberry filling makes approximately 1 ⅔ cups before reserving some for the frosting.
- Store the assembled cake in an airtight container in the refrigerator for up to 4 days to keep it fresh.
Nutrition Information
Nutrition Facts
Serving: 14 servings
Amount Per Serving
Calories 633
% Daily Value*
| Serving | 1serving | |
| Calories | 633kcal | 32% |
| Carbohydrates | 85g | 28% |
| Protein | 5g | 10% |
| Fat | 34g | 52% |
| Saturated Fat | 15g | 75% |
| Polyunsaturated Fat | 4g | 24% |
| Monounsaturated Fat | 13g | 65% |
| Trans Fat | 1g | 50% |
| Cholesterol | 79mg | 26% |
| Sodium | 280mg | 12% |
| Potassium | 251mg | 5% |
| Fiber | 5g | 20% |
| Sugar | 64g | 128% |
| Vitamin A | 694IU | 14% |
| Vitamin C | 7mg | 8% |
| Calcium | 64mg | 6% |
| Iron | 2mg | 11% |
* Percent Daily Values are based on a 2,000 calorie diet.