Description
This nostalgic chocolate chip rectangle cake combines the chewy texture of a giant cookie with the soft crumb of a classic sheet cake. Topped with a silky American buttercream, it is the perfect no-fuss dessert for family gatherings or a simple weeknight treat.
Ingredients
- 2 cups all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon kosher salt
- 1 cup salted butter, melted
- 1 cup brown sugar, packed
- 1/2 cup granulated sugar
- 1 large egg
- 2 teaspoons pure vanilla extract
- 1 1/2 cups semisweet chocolate chips
- 1/2 cup unsalted butter, room temperature
- 2 cups confectioners’ sugar, sifted
- 2 tablespoons whole milk
- 1 teaspoon vanilla extract
- 1 pinch salt
Instructions
- Preheat your oven to 350°F (175°C) and grease a 9×13-inch rectangular baking pan with butter or non-stick spray.
- In a medium bowl, whisk together the flour, baking powder, baking soda, and kosher salt until well combined.
- In a large bowl, whisk the melted salted butter with the brown sugar and granulated sugar until the mixture is smooth.
- Add the egg and vanilla extract to the butter mixture, whisking until the batter appears glossy and thick.
- Slowly stir the dry ingredients into the wet mixture using a spatula just until no flour streaks remain, then gently fold in the chocolate chips.
- Spread the batter evenly into the prepared pan and bake for 25 to 30 minutes, or until a toothpick inserted into the center comes out clean.
- Let the cake cool completely in the pan before beating together the room-temperature butter, sifted sugar, milk, vanilla, and salt to create the frosting; spread evenly over the cooled cake.
Notes
To ensure a perfectly smooth frosting, always sift your confectioners’ sugar before mixing to remove any stubborn clumps. If you are baking in a glass pan instead of metal, check the cake 5 minutes early as glass can often retain more heat and speed up the baking process.
- Prep Time: 15 mins
- Cook Time: 30 mins
- Category: Dessert
- Method: Baking
- Cuisine: American