Tallow is simply fat from surrounding organs that has been purified.
The processes of purification is called rendering.
Rendering the tallow is an important step because it preserves the tallow and allows it to have a longer shelf life.
Tallow can be used in cooking tin place of any usual fat or oil you might use.
It has many health benifits and is a great source of CLA and omega-3's!
Fun fact: Tallow is also great for skin and hair care!