Mushroom pie

Mushroom Pie is a members-only item on the OSRS Grand Exchange in the food category.

In-game examine text: "Mmm mushroom pie."

It has a Grand Exchange buy limit of 10,000 every four hours, a high alchemy value of 18 gp, and item ID 21690.

View on OSRS Wiki

Mushroom Pie shows an active flip setup with a margin of +536 gp and 1,693 trades over the last 24 hours.

At the buy limit of 10,000 every four hours, max profit per cycle is about 5.36m gp — high margin with healthy liquidity.