How to Make Beef Tallow (Purified Beef Fat)

Ask your butcher to source the beef fat (the unit cost is low, and it might even be obtained for free in some places).

Remove and discard any remnants of meat attached to the fat.

Chop the remaining fat (the meatless parts) and place it in a pot to melt slowly over low heat.

Strain the melted oil (the 'liquid gold') into a clean jar.

Wait for the oil to cool until it slightly solidifies, making it ready for culinary use (beef tallow).