Cuban Style Black Beans (Frijoles Negros)

Rinse, sort the neans removing any debris or off colored beans.  Soak the beans over night in a bowl. Put beans into a pressure cooker along with all the ingredients and cook for 90 minutes on low. Once the beans are ready, scoop some and put into a blender with some of the sauce and blend. Put the blended beans back in the pot and stir over a med temp until they thicken.