The datapack adds instant furnaces to vanilla Minecraft. The only limitation I added to the furnaces is that if there isn't enough burnt fuel to cook an item, it won't cook it instantly to nerf bad fuel sources. Every other item is cooked instantly and to use this datapack you just need to place a furnace in your world (If it is already placed try breaking them and re-placing them)
Hopefully this datapack is useful to you and you enjoy it. Thanks for trying it and any feedback is appreciated.
