Ingredients:
For the Chocolate Cake
- 2 cups granulated sugar
- 1 cup light brown sugar, packed
- 2 3/4 cups all-purpose flour (not packed)
- 1 1/2 cups unsweetened cocoa powder, sifted
- 3 teaspoons baking soda
- 1 1/2 teaspoons baking powder
- 1 1/4 teaspoons salt
- 3 large eggs, room temperature
- 2 large egg yolks, room temperature
- 1 1/2 cups full-fat sour cream
- 1/3 cup whole milk
- 3/4 cup vegetable oil (or melted coconut oil)
- 2 tablespoons vanilla extract
- 1 1/2 cups hot water
For the Salted Caramel Chocolate Frosting
- 2 cups unsalted butter (4 sticks), very soft
- 4 1/2 cups confectioners’ sugar, sifted
- 3/4 cup unsweetened cocoa powder, sifted
- 1 teaspoon vanilla extract
- 1/2 teaspoon salt
- 3 tablespoons heavy cream (more if needed)
- 2 tablespoons salted caramel sauce
For Garnish
- 1 1/4 cups salted caramel sauce
- Flaky sea salt
Instructions:
Make the Chocolate Cake
- Preheat oven to 350°F (175°C). Line three 9-inch round cake pans with parchment paper and generously spray the pans and parchment with nonstick cooking spray.
- In the bowl of a stand mixer fitted with the paddle attachment (or a large bowl using a hand mixer), combine granulated sugar, brown sugar, flour, cocoa powder, baking soda, baking powder, and salt. Mix on low speed until well combined, breaking up any large clumps.
- In a separate bowl, whisk together the eggs, egg yolks, sour cream, milk, oil, and vanilla extract.
- Add the wet ingredients to the dry ingredients and mix on low speed until just incorporated.
- Slowly pour in the hot water and continue mixing until fully combined, about 1 minute. The batter will be thin.
- Divide the batter evenly among the prepared pans.
- Bake for 30 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs.
- Cool cakes in the pans for 10 minutes, then remove and transfer to a wire rack to cool completely.
Make the Salted Caramel Chocolate Frosting
- In a stand mixer fitted with the paddle attachment, beat the softened butter on medium speed until smooth and creamy, about 3 minutes.
- Turn the mixer off and sift the confectioners’ sugar and cocoa powder into the bowl.
- Mix on low speed until fully incorporated, about 2 minutes.
- Increase speed to medium and add vanilla extract, salt, heavy cream, and salted caramel sauce. Beat for 3 minutes until fluffy.
- Adjust consistency as needed by adding more powdered sugar to thicken or more heavy cream, 1 tablespoon at a time, to thin.
Assemble the Cake
- Using a serrated knife, level the tops of each cake layer.
- Place one cake layer on a serving plate or cake stand.
- Spread a thin layer of frosting over the top, then drizzle with 1/2 cup salted caramel sauce.
- Add the second cake layer and repeat with frosting and another 1/2 cup caramel.
- Top with the final cake layer and refrigerate the cake for 1 hour to set.
- Once set, frost the top and sides of the cake evenly.
- Drizzle with remaining caramel sauce and sprinkle with flaky sea salt.
Storage & Serving
- Slice and serve at room temperature for best flavor.
- Store covered in the refrigerator for up to 5 days.
- Let chilled cake sit at room temperature for 20–30 minutes before serving.
Tips & Variations
- For deeper flavor, use dark cocoa powder.
- Homemade caramel sauce takes this cake to the next level.
- This cake is perfect for birthdays, holidays, and special occasions.