You need a boiled shoe sole, crushed crocomouth bone, and florion extract.
See the hints in the TOWN section to find out how to get the sole and the florion. The bone comes from the STORE.
You already should know how to boil things from the spaghetti.
Add water from the faucet and the sole to kettle and then light the burner with the lighter.
You need florion extract -- which you can get from a florion.