Very easy, you need to power a furnace with a bucket of lava. For that you need a bucket (iron blocks), a furnace (8 cobblestone) and something to cook (like steak). Use the bucket on lava to fill it. Then, place the bucket of lava as fuel and any piece of meat/ore as an ingredient.
Luckily for you, I've decided to post achievement worlds again for this update. If you're unsure how to get the worlds onto your PC/android/ios device, the following forum I started might help, otherwise there are plenty of youtube videos.Achievement worlds
You can download the Super Fuel world from here:https://www.dropbox.com/sh/v6ggssr1ag7uerp/AACU3QfRen68hOMno...
Once in the world, kill a cow and collect the meat it will drop. Go to the crafting table and craft a bucket (place 3 pieces of iron in the middle left, middle right and bottom middle on PC versions) and craft a furnace (fill all spots with cobblestone except for the one in the middle). Now place the furnace on the ground and place the bucket of lava as fuel and the meat as an ingredient. Bleep bloop