Name: Yellow Layer Cake with Chocolate-Sour Cream Frosting
Yield: Makes 12 to 16 servings
Ingredients: Nonstick vegetable oil spray; 4 cups cake flour; 2 teaspoons baking powder; 1 1/2 teaspoons baking soda; 1 1/2 teaspoons kosher salt; 1 1/2 cups buttermilk; 1/2 cup vegetable oil; 2 teaspoons vanilla extract; 2 cups sugar; 1 cup (2 sticks) unsalted butter, room temperature; 1/2 cup (packed) light brown sugar; 1 vanilla bean, split lengthwise; 6 large egg yolks; 3 large eggs; 14 ounces semisweet or bittersweet chocolate, chopped; 1/4 cup light corn syrup; 2 cups sour cream; 1 1/2 teaspoons kosher salt; 1 1/2 teaspoons vanilla extract; 2 3/4 cups powdered sugar; 3/4 cup (1 1/2 sticks) unsalted butter, room temperature; Three 9"-diameter cake pans with 2" sides

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Yellow Layer Cake with Chocolate-Sour Cream FrostingStephen Lewis

Forget the boxed version you grew up with. This yellow cake gets a rich dark-chocolate frosting with a touch of tang thanks to sour cream. For the best presentation, it's important to cut the cake layers evenly.

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