Trim and clean the fat: Remove any large bits of meat or silver skin. A little is fine, but too much will darken the tallow.

Chop or grind: Cut the fat into very small cubes, about 1/4 inch, or run it through a meat grinder. Smaller pieces render faster and cleaner.

Choose your method: Use a heavy pot on the stovetop (lowest heat), a slow cooker on low, or a covered Dutch oven in the oven at 225°F (107°C).

Start with a splash of water (optional): Add 2–4 tablespoons to the pot with the fat. It keeps the fat from browning early; it will evaporate as it renders.

Render low and slow: Cook uncovered, stirring every 15–20 minutes. Keep heat low. You want gentle bubbling, not frying. This takes 1.5–3 hours depending on batch size.

Watch for doneness: The fat pieces (cracklings) will shrink and turn golden, and clear liquid fat will pool. When most solids are golden and the bubbling slows, you’re done.

Strain carefully: Line a fine-mesh strainer with cheesecloth or a coffee filter. Pour the hot liquid fat into a clean, heatproof jar or container. Do this over a bowl or tray to catch drips.

Optional second strain: For ultra-clean tallow, strain again through a fresh filter while still warm.

Cool and solidify: Let the jars cool at room temp, then cover. The tallow will turn creamy white or pale yellow as it sets.

Save the cracklings: Return the strained solids to the pan and cook a bit longer to crisp. Season lightly with salt. Great as a crunchy snack or salad topper.