Recipe from my mother-in-law Pat, adapted from the back of the Hershey's cocoa powder container
Author: Jane Maynard
Recipe type: Dessert
Ingredients
½ cup butter
¾ cup unsweetened cocoa powder
1 teaspoon vanilla extract
2½ - 2¾ cups powdered sugar
⅓ cup milk
Instructions
Melt the butter in a large bowl in the microwave, in 20 second increments until butter is just melted.
Whisk in cocoa powder and vanilla extract.
Add 1 cup of powdered sugar to the bowl. Using a hand mixer, start on low and beat in the powdered sugar, increasing the speed to medium and mixing well. Add half of the milk, following the same blending technique. Add 1 more cup of the powdered sugar, mixing as described, then the rest of the milk, mixing once again starting on low and increasing to medium speed.
Add ½ cup of powdered sugar (this brings you to 2½ cups) and blend well, starting on low then moving up to medium speed. If you want the frosting to be a little thicker, add up to ¼ cup more of powdered sugar.
Makes enough frosting for a 9" x 13" cake.
Recipe by This Week for Dinner at https://thisweekfordinner.com/perfect-chocolate-frosting-one-pan-chocolate-cake/