I found this web site and I don't know why but the posting on these Black Beans I did before I couldn't post for some reason. ( It couldn't be me, could it?) So here is the recipe again.
Cafe Rio Black Beans:
1 lb dry black beans, rinsed and sorted.
1 cup tomato sauce or juice or whatever
3 1/2 cups water
1/2 large sweet onion
2 garlice cloves, minced
1/2 T. salt
1 to 2 T. cumin
Put all ingredients in a pressure cooker.
Cook on high pressure, 60 minutes, natural release.
For me I would half this recipe and then pressure for 30 minutes. The beans at 60 minutes were a little crunchy. You might want to do them a little longer than 60 minutes.