Easy Chocolate Frosting

 I used half a batch of this to ice a 9x13 of brownies. Delicious, especially chilled 

• 1/2 cup unsalted butter (1 stick) softened to room temperature or microwaved for 10 seconds
• 1/2 cup unsweetened cocoa powder I use Hershey's brand
• 2 teaspoons vanilla extract
• 1/4 teaspoon salt
• 2 cups powdered sugar
• 2-3 tablespoons milk

Via: https://www.designeatrepeat.com/easy-brownie-frosting/#wprm-recipe-container-31828