01 -
Throw everything together in a big pot with a heavy bottom or dutch oven.
02 -
Get it boiling first, then turn down the heat. Let it bubble gently for 2-3 hours, making sure to stir often so it doesn't stick and burn.
03 -
You'll know it's done when most liquid is gone and you've got a thick, dark mixture. Try running a spoon through the middle - if the gap fills slowly, you're good to go.
04 -
Let it sit until it reaches room temperature before you use it.
05 -
If you're saving it for later, put it in jars and keep in your fridge, freezer, or can it properly for longer storage.