Place garlic, jalapeño, and cilantro in the bowl a food processor (or the pictcher of a blender). Process until finely chopped, scraping down sides halfway through. Add black beans, cumin, garlic salt, chili powder, oregano, pepper, lime juice, vinegar, and 2 tablespoons water to food processor. Process until all ingredients are smooth, adding additional water one tablespoon at a time (if necessary) until preferred consistency is reached. Taste and adjust seasonings as desired.