I worked in an ice crean shop and we had one of those little cookie ovens that were popular at the time. Periodically we would be delivered a box of frozen cookie pucks. Put 6 of them on the tiny tray, slide it in the oven and push the “cook” button. A few minutes later it would “ding” and the customers couldn’t resist adding a cookie to their order because of the delicious smell that filled the room.