For the Champagne Cake:

• 3 ⅓ cups cake flour, sifted (for a lighter crumb)
• 2 ½ teaspoons baking powder
• ½ teaspoon salt
• 1 ¼ cups unsalted butter, softened to room temperature
• 1 ¾ cups granulated sugar
• 1 ¼ cups champagne, at room temperature (ensure it’s not flat)
• 6 large egg whites, at room temperature
• 2 ½ teaspoons pure vanilla extract

For the Raspberry Champagne Reduction:

• 9 ounces fresh raspberries
• ¾ cup champagne

For the Raspberry Champagne Buttercream (outside frosting and filling):

• 1 pound (4 sticks) unsalted butter, softened to room temperature
• ½ cup raspberry reduction, completely cooled
• 2 teaspoons pure vanilla extract
• 6 cups confectioners’ sugar, sifted
• A pinch of salt (enhances flavor)
• 3 ounces fresh raspberries (for chunky filling)

For the Drippy Glaze:

• ¼ cup raspberry reduction
• 1 cup confectioners’ sugar, sifted
• ¼ teaspoon pure vanilla extract
• Corn syrup (optional, for extra shine and smooth consistency)

For the Assembly and Garnish:

• Whipped cream (for serving)
• Plenty of fresh raspberries (for garnish)

Instructions

Making the Champagne Cake Layers:

1. Preheat your oven to 350 degrees Fahrenheit (175°C). Prepare three 8-inch round cake pans by generously buttering and lightly flouring them, ensuring no sticking. Tap out any excess flour.
2. In a medium-sized bowl, thoroughly whisk together the cake flour, baking powder, and salt. Sifting the dry ingredients before whisking ensures they are well combined and lump-free. Set this dry mixture aside.
3. In the bowl of a stand mixer fitted with the paddle attachment, cream the softened butter and granulated sugar together on medium speed for at least 4 minutes. Beat until the mixture is visibly light, fluffy, and pale in color. This step is crucial for incorporating air and creating a tender cake.
4. Add the egg whites one at a time, beating well after each addition until fully incorporated. Stop the mixer and scrape down the sides of the bowl as needed to ensure everything is evenly mixed.
5. Stir in the vanilla extract, mixing just until combined.
6. Begin gradually adding the dry ingredients to the wet mixture, alternating with the room temperature champagne. Start and end with the dry ingredients (e.g., ⅓ dry, ½ champagne, ⅓ dry, ½ champagne, ⅓ dry). Mix on low speed only until just combined. Be very careful not to overmix, as this can develop the gluten and result in a tough cake.
7. Divide the cake batter evenly among the three prepared 8-inch round pans. Use a kitchen scale for precision if you have one, ensuring even layers.
8. Bake for 23-25 minutes, or until a wooden toothpick inserted into the center of a cake layer comes out clean. Baking times may vary depending on your oven.
9. Allow the cake layers to cool in their pans for 5 to 10 minutes before carefully inverting them onto a wire rack to finish cooling completely. Ensure they are fully cool before frosting.

Crafting the Champagne Raspberry Reduction:

1. Puree the fresh raspberries in a food processor or blender until smooth. Then, strain the puree through a fine-mesh sieve to remove all the seeds, ensuring a smooth, luxurious reduction.
2. Combine the seedless raspberry puree and champagne in a small saucepan. Place it over medium-low heat. Bring to a gentle simmer, stirring occasionally at first. Watch carefully as the champagne can bubble up vigorously.
3. Continue to simmer, stirring more frequently as it reduces, until the liquid has reduced by half. You should be left with approximately ¾ cup of concentrated reduction. Remove from heat and set aside to cool completely. This flavorful reduction will be used in both the buttercream and the glaze.

Preparing the Raspberry Champagne Buttercream Frosting:

1. In the bowl of a stand mixer fitted with the paddle attachment, beat the softened butter and a pinch of salt on medium speed until creamy and smooth, about 2-3 minutes.
2. Add ½ cup of the cooled raspberry reduction and the vanilla extract. Mix well until fully incorporated, scraping down the sides of the bowl.
3. Gradually add the sifted confectioners’ sugar, one cup at a time, mixing on low speed until combined after each addition. Increase speed to medium-high and beat until the buttercream is light and fluffy, scraping down the sides of the bowl as necessary.
4. Continue mixing until the buttercream is perfectly smooth and spreadable.
5. Scoop out approximately 3 to 3 ½ cups of this smooth, plain pink frosting from the mixing bowl and set it aside. This portion will be used for the outside crumb coat and final frosting of the cake.
6. To the remaining buttercream in the mixing bowl, add the 3 ounces of fresh raspberries. Mix on low speed for just a moment, only until the raspberries begin to break up into chunks. You want noticeable pieces of fruit throughout. This chunky buttercream will be the delicious filling between your cake layers.

Creating the Drippy Raspberry Glaze:

1. In a small bowl, combine the remaining ¼ cup of raspberry reduction, the sifted confectioners’ sugar, and the vanilla extract. Whisk vigorously until the mixture is completely smooth with no lumps.
2. If needed, add a tiny splash of water or corn syrup, a quarter teaspoon at a time, until you achieve the desired drizzling consistency. The corn syrup will also add a beautiful shine to your glaze.

Assembling Your Raspberry Champagne Masterpiece:

1. Place one cooled cake layer onto your chosen serving plate or cake stand. Top it with about one cup of the chunky raspberry champagne filling (the buttercream with fresh raspberry pieces). Spread it evenly to the edges. Repeat this process with the second cake layer and more filling, then place the final cake layer on top.
2. Apply a thin crumb coat of the reserved plain pink raspberry champagne frosting (from step 17) over the entire cake. This traps any loose crumbs. Refrigerate the cake for 20 minutes, or until the crumb coat is firm to the touch. Once set, apply the remaining plain pink buttercream for your final, smooth layer of frosting.
3. Once the final frosting layer is smooth, carefully drizzle the prepared raspberry glaze over the top of the cake, allowing some beautiful drips to cascade artfully over the edge. Refrigerate again for another 20 minutes, or until the glaze is set. When you’re ready to serve, garnish generously with swirls of fresh whipped cream and a generous scattering of additional fresh raspberries for an irresistible finish.

• Baking the cake in three 8-inch round pans creates perfectly proportioned, shorter layers that typically do not require torting (horizontally slicing them in half), simplifying the assembly process and ensuring moistness.
• Adding a small amount of corn syrup to the raspberry glaze not only enhances its glossy shine but also helps achieve a smoother, more controllable pouring consistency for those beautiful drips.
• For optimal freshness and stability, store the finished Raspberry Champagne Cake in the refrigerator. However, for the best flavor and texture, allow the cake to come to room temperature for about 30-60 minutes before serving. This allows the buttercream to soften slightly and the flavors to fully bloom.
• When making the raspberry reduction, ensure your champagne is good quality – the flavor will concentrate and directly impact the final taste of your buttercream and glaze.
• Don’t rush the cooling process for the cake layers and the raspberry reduction. Warm components can melt the buttercream and compromise the cake’s structure.
• For perfectly whipped cream garnish, use very cold heavy cream and chill your mixing bowl and whisk attachment for 15 minutes prior to whipping.