American Airlines used to serve the most wonderful baked on board cookies. The whole domestic first class cabin would fill with the smell of fresh baked goodness. It was that smell, even more than the taste, which made the flight feel like home.
After US Airways management took over, and then implemented US Airways catering standards (while meeting in the middle the distance of flights that got meals) in September 2014, baked on board cookies were eliminated. They explained that since legacy US Airways aircraft had just one oven up front, it was tough for flight attendants to heat both meals and cookies at the same time.