Desserts > Cakes > Sheet Cakes > Brownie Sheet Cake Recipe

Fudgy Chocolate Brownie Sheet Cake

Indulge in this rich and fudgy chocolate brownie sheet cake, perfect for parties or a simple weeknight dessert. This recipe is easy to follow and yields a moist, decadent brownie that everyone will love. Baked in a sheet pan, it's ideal for serving a crowd.

Prep Time
20 minutes
Cook Time
25-30 minutes
Servings
16-20
Ingredients
  • 1 cup (2 sticks) Unsalted Butter
  • 1 cup Unsweetened Cocoa Powder
  • 2 cups Granulated Sugar
  • 1 cup, packed Brown Sugar
  • 4 large Eggs
  • 2 teaspoons Vanilla Extract
  • 1 1/2 cups All-Purpose Flour
  • 1/2 teaspoon Salt
  • 1 teaspoon Baking Powder
  • 1 cup (optional) Chocolate Chips

Prepare the Baking Pan

Preheat your oven to 350°F (175°C). Grease and flour a 9x13 inch baking pan. You can also line the pan with parchment paper, leaving an overhang on the sides, for easy removal after baking.

Melt Butter and Cocoa

In a medium saucepan over low heat, melt the butter. Remove from heat and whisk in the cocoa powder until smooth. This creates a rich chocolate base for the brownies.

Add Sugars and Eggs

Whisk in the granulated sugar and brown sugar until well combined. Add the eggs one at a time, whisking well after each addition. Stir in the vanilla extract.

Incorporate Dry Ingredients

In a separate bowl, whisk together the flour, salt, and baking powder. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix.

Add Chocolate Chips (Optional)

If using, fold in the chocolate chips. This adds extra chocolatey goodness to the brownies.

Bake the Brownies

Pour the batter into the prepared baking pan and spread evenly. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs. Don't overbake, as this will result in dry brownies.

Cool and Cut

Let the brownies cool completely in the pan before cutting into squares. If you lined the pan with parchment paper, you can lift the brownies out using the overhang and then cut them.

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FAQ

  • Can I use different types of chocolate chips?

    Yes, you can use milk chocolate, dark chocolate, or even white chocolate chips. Feel free to experiment with your favorite flavors.
  • How do I store the brownie sheet cake?

    Store the brownie sheet cake in an airtight container at room temperature for up to 3 days. You can also refrigerate it to extend its shelf life.
  • Can I add nuts to the brownie sheet cake?

    Yes, you can add chopped nuts like walnuts, pecans, or almonds to the batter. Fold them in along with the chocolate chips, if using.