Lunch Lady Brownies!

Ingredients
For The Brownies:
1 cup melted butter
½ cup unsweetened cocoa powder
2 cups all-purpose flour
2 cups sugar
½ teaspoon salt
4 eggs
3 tablespoons vanilla extract

For The Frosting:
¼ cup melted butter
¼ cup milk
3 cups powdered sugar
¼ cup of unsweetened cocoa powder
1 tablespoon vanilla extract