The Best Homemade Frosted Brownies That Everyone Goes Crazy For
There are brownies, and then there are these brownies. Rich, fudgy, and topped with a silky smooth chocolate frosting that sets into the most glorious glossy layer, these homemade frosted brownies are the kind of treat that disappears from the plate before you even get a chance to grab a second piece. Once you make them, you’ll understand why so many home bakers swear by doubling the batch and baking in a 9×13 pan — because a smaller pan simply never makes enough.
Whether you’re bringing something to a potluck, need a crowd-pleasing dessert for a family gathering, or just want to treat yourself on a quiet weekend, this recipe is the one to reach for. It’s straightforward, uses pantry staples, and delivers incredible results every single time.
Ingredients
- 1 cup (2 sticks) unsalted butter
- 2 cups granulated sugar
- 4 large eggs
- 2 teaspoons pure vanilla extract
- 1 cup all-purpose flour
- 2/3 cup unsweetened cocoa powder
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
For the Chocolate Frosting
- 1/2 cup (1 stick) unsalted butter
- 1/3 cup unsweetened cocoa powder
- 1/3 cup whole milk
- 3 cups powdered sugar, sifted
- 1 teaspoon pure vanilla extract
- Pinch of salt
Method
- Preheat your oven to 350°F (175°C). Grease a 9×9-inch baking pan or line it with parchment paper for easy removal. If doubling the recipe, use a 9×13-inch pan instead.
- In a medium saucepan over low heat, melt the butter completely. Remove from heat and stir in the granulated sugar until well combined.
- Add the eggs one at a time, whisking well after each addition. Stir in the vanilla extract.
- Sift together the flour, cocoa powder, baking powder, and salt. Gently fold the dry ingredients into the wet mixture until just combined — do not overmix.
- Pour the batter evenly into your prepared pan and spread it out to the edges with a spatula.
- Bake for 25 to 30 minutes, or until a toothpick inserted into the center comes out with just a few moist crumbs. Be careful not to overbake — slightly underdone is the secret to a fudgy brownie.
- Allow the brownies to cool completely in the pan before adding the frosting.
- To make the frosting, melt the butter in a saucepan over medium heat. Stir in the cocoa powder and milk, and bring just to a gentle simmer, stirring constantly.
- Remove from heat and whisk in the sifted powdered sugar, vanilla extract, and a pinch of salt until smooth and glossy.
- Pour the warm frosting over the cooled brownies and spread it quickly and evenly with a spatula. It will set as it cools into that gorgeous, shiny layer you see in the photo.
- Once the frosting is fully set, slice into squares and serve. Store any leftovers in an airtight container at room temperature for up to four days — if they last that long!
Tips for the Perfect Batch
For the fudgiest texture, pull your brownies out of the oven when the center still looks ever so slightly underdone. They will continue to cook from the residual heat in the pan. Letting them cool completely before frosting is non-negotiable — adding warm frosting to warm brownies creates a messy situation. If you want clean, bakery-style cuts, refrigerate the frosted brownies for about 20 minutes before slicing with a sharp knife.
And yes — absolutely double the recipe. Bake in a 9×13 pan and add about 5 extra minutes to the bake time. You will not regret it. These brownies have a way of making everyone in the room very, very happy.
