2Whisk the melted butter and 1/2 cup cocoa powder until smooth.
3Add 2 cups of granulated sugar, 2 cups of all-purpose flour, and 1/2 teaspoon of salt to the butter-cocoa mixture.
4Stir the mixture until it becomes thick.
5Add four large eggs one at a time.
6Add 2 teaspoons of vanilla.
7Spread the batter into the prepared pan.
8Bake at 350 degrees F for 20 to 25 minutes, being careful not to overbake.
9In the last five minutes of baking, whisk together the frosting ingredients: 1/4 cup softened butter, 1/4 cup milk, 1/4 cup cocoa powder, 3 cups powdered sugar, and 1/2 teaspoon (or 1 teaspoon) vanilla extract until smooth and pourable.
10Immediately pour the frosting over the hot brownies as soon as they come out of the oven.
11Cool the brownies for 30 to 45 minutes until the frosting forms a crackly layer.
Ingredients
1 cup butter, melted
0.5 cup unsweetened cocoa powder
2 cups granulated sugar
2 cups all-purpose flour
0.5 tsp salt
4 large eggs
2 tsp vanilla
0.25 cup butter, softened
0.25 cup milk
0.25 cup cocoa powder
3 cups powdered sugar
0.5 tsp vanilla extract
Equipment
9x13 panwhiskoven
Tips
Do not overbake the brownies.
Pour the frosting over the hot brownies immediately after they come out of the oven.