Chef's hat

Chef's Hat is a free-to-play item on the OSRS Grand Exchange in the other category.

In-game examine text: "What a silly hat."

It has a Grand Exchange buy limit of 150 every four hours, a high alchemy value of 1 gp, and item ID 1949.

View on OSRS Wiki

Chef's Hat shows an active flip setup with a margin of +22 gp and 2,277 trades over the last 24 hours.

At the buy limit of 150 every four hours, max profit per cycle is about 3.3k gp — high margin with healthy liquidity.