This frosting is a bit untraditional because it starts with melted butter. I think it makes for an especially creamy, decadent frosting. After it's been chilled, it almost reminds me a little of a dense mousse.
Brownie Frosting
Yield: a thick layer of frosting for an 8x8 pan
Ingredients:
1/2 cup salted butter
1/2 cup cocoa powder
2 cups powdered sugar
1 teaspoon vanilla
4-6 tablespoons heavy whipping cream
Directions:
1. In a large microwave-safe bowl, melt the butter in the microwave.
2. Add the cocoa powder and use an electric mixer to combine thoroughly.
3. Add 1 cup powdered sugar, the vanilla and heavy whipping cream, as needed to help everything mix together. Beat thoroughly.
4. Add one more cup powdered sugar and heavy whipping cream as needed. Beat 3-4 minutes, until frosting noticeably lightens in color. If frosting is too thick, add more cream.
5. Spread on completely cooled brownies. This frosting is good chilled.
Source: adapted from www.cookiesfordays.com
