A sweet jelly prepared in egg shells with agar agar mixture and sweet corn. Sweet corn jelly is a fun dessert to prepare especially if stored in eggshells. Also called sweet corn agar-agar, this is a simple and fast recipe you can prepare with kids. Make this for Easter or simply enjoy it anytime you desire. This easy to prepare and fun dessert is a great favourite among children and adults alike. During my childhood, my mom often made them for my sister and I. We always look forward to having these corn jellies in eggshells for their deliciousness and cuteness.