1cupboiling water (or hot coffee, for further depth of taste)
Frosting
1cupbutter
pinchsalt
3/4cupcocoa powder
4cupspowdered sugar
2tspvanilla
1/2cupcream, half and half or milk (you may not need it all). (I splash a bit of brewed coffee into the frosting, as well. If so, just use less cream)
Instructions
Preheat oven to 350°. Spray a 9 x 13" baking pan with cooking spray.
Whisk flour, sugar, cocoa powder, baking soda, baking powder, and salt together in large bowl.
Add the buttermilk, oil, eggs and vanilla and mix with a hand mixer until combined.
Add the hot water or coffee and mix on low speed until combined. Then scrape down bowl and mix again on high speed for about 30 seconds.
Pour batter into baking pan. Bake for about 35 minutes, or until a toothpick inserted in center comes out clean. Remove pan from oven and set on a wire rack to cool.
Make Frosting
Beat the butter, salt and cocoa powder together in a large bowl, until smooth.
Alternate adding 1 cup of the powdered sugar and 1 Tbsp of the cream/coffee, mixing between each addition. Scrape down sides of bowl and then beat with mixer for 3-5 minutes, or until light and fluffy.
When cake is cool, spread with chocolate frosting. This is good. Ration yourself.