Pearle Bixby Wait invented Jell-O, but he had merely added colors and flavors to an existing product.
Peter Cooper took the first step by inventing a quick way to make gelatin from powder. He also built America's first steam locomotive and first steel rocking chair.
Yeah, I understand how gelatin was discovered in the course of ordinary cooking, & also why use of aspic became A Thing.
But turning it into a dessert was fucking weird.