Cutting ears of corn into disks is a nice way to serve them, since it's easier (and much neater) to eat these pieces than a whole ear, and you can toss them with butter and seasonings. In this recipe, the corn pieces are heated in a microwave (or you could boil them briefly until the kernels are tender) and then tossed wtih butter, hot pepper jelly, chopped cilantro, and lemon juice if desired.