Margarine is a highly processed food made by combining water and vegetable oils and usually containing emulsifiers, preservatives, additives, artificial colourings and flavourings and salt.

For the past few decades, a process known as hydrogenation has been used to harden the vegetable oils in margarine. Fully hydrogenated oils produce saturated fats. But partially hydrogenated oils ...

Emulsifiers, artificial butter flavoring, and salts are also typically added to margarine during production, which is a process that you can't easily replicate yourself. Even at its firmest ...