• prep: 50 min
• cook: 1 hr 50 min
• total: 2 hr 40 min

servings:

Real milk chocolate—not just cocoa powder—gives this cake its rich, chocolatey flavor. With a foolproof, one-bowl preparation, effortless frosting, and portability, this cake is sure to be your new go-to for special occasions and backyard barbecues.

• 1 cup (2 sticks) unsalted butter, plus more for pan
• 1/2 cup plus 2 tablespoons unsweetened cocoa powder, divided
• 6 ounces high-quality milk chocolate, chopped
• 3 large eggs
• 2 teaspoons vanilla extract
• 1 3/4 cups sugar
• 1 1/4 cups buttermilk
• 2 cups all-purpose flour
• 1 1/2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 9 ounces high-quality milk chocolate, divided
• 1 teaspoon vanilla extract
• 1/4 teaspoon kosher salt
• 3/4 cup heavy cream
• 1/2 cup store-bought dulce de leche or caramel sauce

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