The best pinto beans are prepared this way:Wash beans,put in slow cooker. Add one medium chopped onion, five or more garlic cloves, salt and small amount of sugar. Cover with water plus a couple of inches. Cook on high in slow cooker for 7 hours. If the juice isn't thick the next day, put the whole thing in a pot, put on the stove and cook until the juice is as thick as you like it. Delicious !! You may add chili powder or whatever seasonings you wish,but I like mine without the extras (except they must have lots of onion and garlic cooked in them.) Enjoy, y'all !!!. d, put on stove and cook on low until juice is nice and thick. U-m-m-m-m-m very good. (Add cumin if you like or chili powder, etc.