I use two general AI techniques to provide recipe advice:
This web site is written in the Clojure programming language using the Compojure, Noir, and Hiccup libraires. I use the Postgres database to store each user's on-hand ingredients. Each user is identified by a randomly generated ID that is stored in a cookie in your web browser. Please note that if you use this site from different web browsers, different smart phones of tablets, etc., then you appear to the system as a separate user for each device. I suggest that you use the same web browser or device when using this web site, otherwise you will have to re-enter your ingredients on hand which takes about 2 minutes to do.