Shef is a new food delivery service currently operating in Chicago, New York, Seattle, and a couple other cities. The idea is that individuals (not restaurants) get vetted as chefs (shefs) and make food based on family recipes and their ethnic/cultural traditions, and you have to order them ahead of time. Currently, anyone who uses a referral link can get $10 off their first two orders, and the person referring gets $10.

My code: https://shef.com/refer/dvssu