If making Charro Beans using Canned Beans: Follow recipe, except use 3-15 ounce cans of pinto beans. Drain and rinse the beans before adding in. When making the charro beans in the slow cooker no broth is needed just water, since the beans will cook long enough to create their own bean broth. The stovetop version doesn't cook as long, so it needs the additional flavoring of a premade broth.