The BEST chocolate sheet cake! This easy, ultra moist chocolate cake is perfect for a crowd at birthday parties, graduation parties, and more. It's ready start to finish in under an hour with our favorite chocolate fudge frosting. Make it with butter or use coconut oil for a butterless option. Bake it in a sheet pan or jelly roll pan and top with your favorite sprinkles. The best chocolate cake recipe for holidays and celebrations, plus a ton of tips and step by step photos!