Recommend that you should install Just Enough Items (for mods using Forge) or Roughly Enough Items (for mods using Fabric) to view the full recipes included in this mod.
You can see all these recipes inside the recipe book.
To create a bonfire you need 2 items. A Pile of Bone and Ash and a Coiled Sword.
The Pile of Bone and Ash can be crafted like so, you can leave the top row empty and use the bottom row instead:

The items in the top are homeward bones. These are used to return to your spawn point but are consumed on use. Your spawn point is stored per dimension.
The items in the bottom are Piles of Ash which have a chance to drop from mobs when burnt to death.
Homeward Bones are crafted like so, this recipe is shapeless:

The Coiled Sword can be crafted like so:

Once you have both place the Pile of Bone and Ash on the ground and then right click it with the Coiled Sword. This will place the coiled sword on the pile creating a bonfire. Now to light the bonfire you simply right click the bonfire which will then allow you to name the bonfire. When naming the bonfire there is also the option to set the bonfire as private which will hide the bonfire from other players so they can’t travel to it but can travel from it.
However, since bonfires are like teleporters they are only really useful if you make 2 of them.
If you destroy a bonfire it will drop a Coiled Sword Fragment which acts just like the Homeward Bone but is not consumed. It can also be used to create a Coiled Sword for less materials, this recipe is shapeless.

The Estus Flask when crafted has 3 uses which can be increased using Estus Shards. To reinforce the Estus Flask simply right click while holding an Estus Shard with the Estus Flask in your inventory. Drinking the Estus Flask will heal 3 hearts.
The Estus Flask is crafted like so, this recipe is shapeless:

And Estus Shards are crafted like so, this recipe is shapeless:

Lastly Ash Blocks can be crafted which act exactly like sand, this recipe is actually also shapeless but there’s no way to tell that!

And of course a block will create 9 Piles of Ash, this recipe is shapeless
