Add a new subrule called “Sous” to the rule “Reviews,” with the following text:

A Cook may, instead of submitting a Recipe for review, choose to be Sous to another Cook. They may make this choice by posting a non-Recipe comment to a Review announcing that they are Sous to X, where X is the name of another Cook who does not have anyone currently Sous to them. This is called a Volunteer Comment. Any earlier Entry Recipe they have submitted is no longer a valid Entry Recipe, and they may not later post another Volunteer Comment on the same Review.

When posting an Entry Recipe, if a Cook has a Sous Cook, they may use any piece of Equipment possessed by that Sous Cook as if it were their own. When the next Review is posted, a Sous Cook earns the same rating as the Cook to whom they are Sous. All existing Sous-Cook relationships are then dissolved.

If a given Cook has already received a 5-star rating from a given Reviewer, they may not be Sous to anyone when preparing Recipes for that Reviewer.