A synthetic butter made entirely from carbon, hydrogen and oxygen and backed by Bill Gates-backed, has been slammed online as 'disgusting.'

The bizarre spread is made by Savor, a company based in Batavia, Illinois, and is backed by the Microsoft founder.

Their products are described on their website as: 'Delightfully rich foods without animals, farmland, fertilizers, hormones, or antibiotics. These are real fats, not a substitute.'

But the rollout plan has received mixed reviews with many users slamming the product online as 'disgusting.'

Celebrity chef Andrew Gruel wrote on X: 'Disgusting. They are combining hydrogen, carbon and oxygen to create fat molecules then manipulate that to taste like butter. Why do this when we already have butter?