I gave each student a zipper baggie. Then, instead of pouring all of the ingredients into a bowl, I put them in separate containers. I programmed a switch to say "I want that." Each child was asked if they wanted the ingredient in their baggie. They activated the switch if they wanted the ingredient in their mix. The students enjoyed deciding which ingredients they wanted. I do have some students who don't eat much by mouth, so we send the bags home to share with their siblings, grandparents, etc.