Beef tallow is a type of rendered fat derived from cattle. It is produced by slowly cooking the fat from beef, which separates the fat from the connective tissues and impurities. The result is a solid, creamy substance that can be used in cooking, baking, and frying due to its high smoke point. In addition to culinary uses, beef tallow has applications in soap making, candles, and even as a natural moisturizer in skincare. It is rich in saturated fats and can be a source of energy, making it a popular choice for those following keto or paleo diets.