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Raspberry Chocolate Truffle Cake - layers of chocolate cake, raspberry cream, chocolate ganache, raspberry cake and chocolate buttercream #cakebycourtney #valentinescake #valentinesdessert #bestcake #raspberrycake #raspberrychocolatecake #chocolatecake #chocolatebuttercream #raspberrycreamfilling #cake #cakerecipe #valentinescakerecipe #bestdessertrecipe #bestcakerecipe
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4.87 from 45 votes

Raspberry Chocolate Truffle Cake

Chocolate cake, raspberry cream, chocolate ganache, raspberry cake and chocolate buttercream.
Prep Time2 hrs
Cook Time1 hr
Total Time3 hrs
Course: Dessert
Cuisine: Cake
Keyword: Raspberry Chocolate Cake, Raspberry Chocolate Truffle Cake, Valentine's Cake
Servings: 20 people
Author: Courtney Rich

Ingredients

FOR THE CHOCOLATE CAKE

  • 1 1/4 (150 g) cups all-purpose flour
  • 1 cup (200 g) granulated sugar
  • 1/2 cup (59 g) dark cocoa powder
  • 1 teaspoon (4 g) baking soda
  • 1/2 teaspoon (2 g) baking powder
  • 1/2 teaspoon (2.8 g) kosher salt
  • 1/2 cup (120 g) buttermilk at room temperature
  • 1/4 cup (54.5 g) vegetable oil
  • 2 large eggs at room temperature
  • 1/2 teaspoon (2.1 g) pure vanilla extract
  • 1/2 cup (118.3 g) hot water

FOR THE CHOCOLATE BUTTERCREAM

  • 2 cups (452 g) unsalted butter slightly cold
  • 10 oz. dark or semi sweet chocolate chips
  • 5 cups (625 g) powdered sugar measured and then sifted
  • 1 teaspoons (4.2 g) pure vanilla extract
  • 1/4 cup (57.75 g) heavy cream
  • Pinch of salt

FOR THE RASPBERRY CAKE

  • 3/4 cup (150 g) granulated sugar
  • 1/2 cup (113 g) unsalted butter at room temperature
  • 1 egg at room temperature
  • 2 egg whites at room temperature
  • 1/2 tsp (2.1 g) vanilla
  • 1 tsp (4 g) baking powder
  • 1 1/4 cups (143.75 g) cake flour
  • 1 oz freeze dried raspberries measured and then pulverized into a powder
  • 1/2 tsp (2 g) salt
  • 1/2 cup (120 g) sour cream at room temperature
  • 1/2 cup (116 g) raspberry puree about 1 1/2 cups chopped raspberries, pureed and simmer over the stove to thicken and reduce to 1/2 cup

FOR THE RASPBERRY CREAM FILLING

  • 2 cups (455 g)heavy cream
  • 1/2 cup (100 g) sugar
  • 1/2 oz. (15 g) freeze dried raspberries measured and then pulverized into a powder

FOR THE CHOCOLATE GANACHE

  • 1 cup (175 g) dark or semi sweet chocolate chips
  • 3/4 cup (173 g) heavy cream

Instructions

FOR THE CHOCOLATE CAKE

  • Preheat the oven to 325 degrees F. Spray one 8-inch round cake pans with nonstick spray. Line the bottom of each pan with parchment paper, then spray the parchment paper. Set aside.
  • Combine the flour, sugar, cocoa, baking soda, baking powder, and salt into the bowl of an electric mixer fitted with a paddle attachment and mix on low speed until combined.
  • In another bowl, combine the buttermilk, oil, eggs, water and vanilla. Whisk until combined.
  • With the mixer on low speed, slowly add the wet ingredients to the dry. Mix just until combined and then scrape down the sides and bottom of the bowl and mix again briefly (only about 20 seconds).
  • Pour the batter into the prepared pan. Bake for 28 to 30 minutes, or until a toothpick inserted in the center comes out with just a few moist crumbs on it.
  • Cool in the pan for 10 to 15 minutes, then turn them out onto a cooling rack and cool completely. (I like to spray my cooling racks with nonstick spray to ensure non of the cake sticks to the racks).
  • Divide the cake layer, horizontally. Wrap the entire cake layer in plastic wrap and freeze until ready to use.

FOR THE CHOCOLATE BUTTERCREAM

  • In a bowl fitted with a paddle attachment, beat the butter on medium-high speed for about two minutes.
  • Slowly add the ganache mixture (from the buttercream recipe section) and beat on medium speed until smooth. Scrape down the sides of the bowl and mix for another 30 seconds.
  • With the mixer on low speed, gradually add the powdered sugar and mix until combined.
  • Add the vanilla and salt. Turn the mixer to medium-high and beat the frosting for another 3-4 minutes until light and fluffy.
  • Before frosting your cake, use a wooden spoon to hand mix the frosting to push out air bubbles.

FOR THE RASPBERRY CAKE

  • Preheat your oven to 325 degrees F. Spray one 8-inch round cake pan with cooking spray. Line the bottom with parchment. Spray again. Set aside.
  • In a medium sized mixing bowl, whisk together the flour, baking powder, salt and freeze dried raspberries. Set aside.
  • In a mixer fitted with the paddle attachment, beat the sugar and butter for about 2 minutes, until light and fluffy.
  • Add the egg and egg whites, one at a time, and mix well after each addition. (Be sure to scrape the sides and bottom of the bowl between each addition too). Add the vanilla.
  • With the mixer on low, alternatively add the flour mixture with the raspberry puree, starting and finishing with the flour mixture. Mix until just incorporated. Fold in the sour cream.
  • Bake the cake for about 30 to 35 minutes, until a toothpick inserted in the center comes out with just a few moist crumbs on it.
  • Let cool completely and then divide the layer like you did with the chocolate cake.
    NOTE: The raspberry cake doesn't get as tall as the chocolate cake. You didn't do anything wrong if it's not as tall as the chocolate cake.

FOR THE RASPBERRY CREAM FILLNG

  • In a food processor or blender, pulse the freeze dried raspberries until they resemble a powder.
  • Add the sugar and cream. Scrape down the sides and corners to gather all the fruit powder.
  • Pulse the mixer for about 1 to 2 minutes or until the texture becomes thick like Greek yogurt. Keep chilled until ready to use.

FOR THE GANACHE

  • In a microwave safe bowl, heat the cream on medium-high heat for about 1 minute.
  • Pour the cream over the chocolate chips and stir until the chocolate chips are melted and you've created and silky smooth texture. If the chips aren't melting all the way, you can microwave the mixture in 20 second intervals, stirring each time, until you've reached the desired consistency.

ASSEMBLY

  • Starting with the chocolate cake, place the first half of the chocolate cake on a cake board. Spread about 1 cup of of the raspberry cream over the cake layer. Drizzle and spread chocolate ganache over the cream filling.
  • Place one of the raspberry cake layers on top of the ganache and spread with 1 cup of the chocolate buttercream.
  • Repeat step 1 and finish with the second raspberry cake layer on top (top-side down).
  • Apply a thin layer of the chocolate buttercream around the entire cake. This thin layer of frosting is your crumb coat. After you apply the crumb coat, you'll put the entire cake into the freeze for 10 to 15 minutes. This sets the crumb coat and locks the crumbs in place so you don't have them in your final coat of frosting.
  • Once the cake has chilled for 10 to 15 minutes, continue to frost the cake with the remaining chocolate buttercream. You can then use extra ganache, buttercream and raspberry cream to decorate the top, if desired.