CHOCOLATE CAKE WITH SALTED CARAMEL AND WHITE CHOCOLATE BUTTERCREAM

Steps:

• Preheat a convection oven to 350 degrees F. Whisk the vinegar into the milk in a medium bowl and set it aside to curdle for 5 minutes.
• Add the granulated sugar, oil and vanilla to the milk mixture and beat by hand with a whisk until foamy.
• Sift together the flour, cocoa, baking soda, baking powder and salt in a large bowl. Add the dry ingredients to the wet ingredients in 2 batches, beating with an electric mixer fitted with a whisk attachment until no lumps.
• Grease three 6-inch cake pans with nonstick cooking spray. Divide the batter among them and bake until a toothpick inserted in the center of each cake comes out clean, about 20 minutes
• Let cool slightly, then remove the cakes from the pans. Cool the cakes in the refrigerator for 30 minutes. Soak the cake rounds with Coffee Simple Syrup by brushing about 1/3 cup onto each layer as you build the cake. To build: Spread the White Chocolate Buttercream on one soaked cake round, then add a heavy drizzle of Caramel Sauce. Add a second layer and repeat. Add the last layer and frost the whole cake with White Chocolate Buttercream.
• Add the sugar to a small saucepan fitted with a lid. Pour in the coffee and stir. Bring the mixture to a rolling boil over medium heat, stirring constantly, until sugar completely dissolves. Turn off the heat. Cover immediately and let cool for 15 minutes.
• Put the white chocolate chips in a metal bowl. Bring the granulated sugar and 3 cups water to a boil in a large saucepan. Reduce the heat. Mix the cornstarch with 1 cup of water in a small bowl to combine. Stir it into the sugar mixture. Bring to a boil. Pour the sugar mixture over the white chocolate. Stir by hand with a whisk to combine. As mixture cools, stir 2 more times over the next 40 minutes. Let cool to room temperature.
• Transfer to the bowl of an electric mixer fitted with a whisk attachment, add the butter and vanilla and mix until light and fluffy.
• Combine the light brown sugar, butter, evaporated milk, vanilla and salt in a small saucepan over medium heat. Cook, stirring, until thickened.