Chocolate Sheet Cake | Food Stuff

Ingredients

• 1 teaspoon baking soda
• 1/2 cup buttermilk
• 4 heaping tablespoons cocoa powder
• 2 large eggs
• 2 cups All Purpose Gold Medal® Flour
• 2 cups granulated white sugar
• 6 tablespoons milk
• 1 pound powdered sugar (if it's lumpy, sift it)
• rainbow sprinkles (or chopped pecans, if you're into those)
• 1/4 teaspoon salt
• 1 3/4 sticks salted butter
• 1 teaspoon vanilla extract
• 1 cup boiling water (just get it really hot in the microwave)