Then, melt the butter in a medium saucepan over low heat. The cocoa powder and milk should be well mixed after being added. When the frosting is thick and velvety, turn off the heat and gently whisk in the powdered sugar, and add the vanilla extract mixing well.

Step 6:

Using a spatula, evenly pour the chocolate frosting over the top of the brownies when they have finished cooling completely. Before cutting the brownies into squares or rectangles, give the icing some time to set.

The Lunch Lady Brownies are a dessert that may be enjoyed on its own, or they can be elevated to an even more decadent experience by being served with a dollop of vanilla ice cream. These brownies are great for getting together with family and friends, bringing to potlucks, or serving as a special treat to satiate your desire for chocolate.