Dry Ingredients: 🥄 1 3/4 cup all-purpose flour 🍬 2 cups granulated sugar 🍫 3/4 cup cocoa powder 🥄 2 tsp baking soda 🥄 1 tsp baking powder 🧂 1 tsp salt Wet Ingredients: 🥛 1 cup buttermilk (or half-and-half) 🛢️ 1/2 cup vegetable oil 🥚 2 large eggs 🍦 1 tsp vanilla extract ☕ 1 cup hot coffee Frosting: 🍫 6 ounces semisweet chocolate, chopped 🧈 1 cup unsalted butter (2 sticks), room temperature 🍬 3 cups powdered sugar, sifted 🧂 1 pinch salt 1 tsp vanilla extract 1/2 cup sour…