The Impossible burger is made from simple, all-natural ingredients such as wheat, coconut oil, and potatoes. What makes the Impossible Burger unlike all others is an ingredient called heme. Heme is a basic building block of life on Earth, including plants, but it’s uniquely abundant in meat. Heme is what makes meat smell, sizzle, bleed, and taste gloriously meaty. Consider it the “magic ingredient” that makes the Impossible burger a carnivore’s dream.