These are made with canned yams, crushed pineapple and are covered with corn flakes. My Mom got this recipe in the early 1960's and made it every Thanksgiving. The corn flakes add texture and so the balls resemble little porcupines! Note: my husband likes marshmallows with yams so I have since made some with marshmallows inside the balls for those who like it sweet! This year I made half the balls with 3 mini marshmallows that I put put on top in a small indentation. DH's have sugar-free marshmallows which I found on-line (La Nouba brand)! You can also put the yam/pineapple mixture in a ramekin without the cornflakes and just add marshmallows too.