I'm posting pressure cooker instructions. If you don't have a pressure cooker, just adjust the liquid amount and cook the beans as you normally would.
1 lb dry black beans, rinsed and sorted
1 c. tomato sauce/juice/whatever
3 1/2 c. water
1/2 large sweet onion (or 1 regular onion), chopped
2 garlic cloves, minced
1/2 T. salt
1 to 2 T. cumin (depending on desired spiciness)
• Put all ingredients in a pressure cooker.
• Cook on high pressure, 50 minutes, natural release.