Classic Butter Cake With Chocolate Frosting

Total Time: 45 mins Preparation Time: 10 mins Cook Time: 35 mins

Ingredients

• 3 cups all-purpose flour
• 1 tablespoon baking powder
• 1/4 teaspoon salt
• 1/2 lb unsalted butter, at room temperature
• 2 cups granulated sugar
• 4 large eggs, lightly beaten, at room temperature
• 1 cup whole milk, at room temperature
• 1 teaspoon vanilla extract
• chocolate frosting
• 4 ounces semisweet chocolate, finely chopped
• 2 ounces unsweetened chocolate, finely chopped
• 16 tablespoons unsalted butter, at room temperature
• 2 cups confectioners' sugar, sifted
• 3 tablespoons light corn syrup
• 1 teaspoon vanilla extract
• 1 pinch salt

Recipe

• 1 1. position the rack in the lower third of the oven and preheat to 350°f (180°c). line the bottoms of two 9 x 2-inch round cake pans with parchment or wax paper.
• 2 2. sift the flour, baking powder, and salt onto a piece of wax paper; set aside.
• 3 3. in the bowl of a heavy-duty mixer fitted with the paddle blade, beat the butter on medium speed until it is lighter in color; about 45 seconds. add the sugar in a steady stream, then stop the machine and scrape down the bowl. resume beating, stopping occasionally to scrape down the sides of the bowl, until the mixture is very light in color and texture, 4 to 5 minutes.
• 4 4. gradually pour in the eggs, about a tablespoon at a time. (if the mixture looks curdled, stop adding the eggs, increase the speed to high, and beat until it looks smooth and shiny. return the speed to medium, and add the remaining eggs.) continue beating until the mixture is ivory-colored. the entire process of adding and beating the eggs should take 3 to 4 minutes.
• 5 5. reduce the mixture speed to low. add the flour mixture in four additions, alternating with three additions of the milk. after each addition, beat until smooth and scrape down the sides of the bowl. beat in the vanilla with the final addition of milk. spread the batter evenly in the prepared pans.
• 6 6. bake until the tops spring back when the cakes are lightly pressed in the centres and a toothpick inserted in the centres comes out clean, about 25 minutes.
• 7 7. transfer the layers to wire cooling racks and cool for about 10 minutes. invert onto the racks or plates and remove the pans. peel off the paper liners and place them back on the layers, sticky sides up. invert onto wire racks, right side up, and cool completely on the wax paper. (the cake can be baked 1 day ahead, cooled, and stored, wrapped tightly in plastic wrap. or freeze, overwrapped with foil, for up to 2 weeks.)
• 8 8. fill and frost layers, top and sides with chocolate frosting.
• 9 to make the frosting, in the top pan of a double boiler, combine the bittersweet and unsweetened chocolates. set the pan over but not touching barely simmering water in the bottom pan and stir until melted. let cool slightly. in a large bowl, using an electric mixer, beat the butter and confectioners’ sugar on medium speed until fluffy. beat in the corn syrup, vanilla and salt. while beating, gradually add the chocolate and beat until smooth.