1.In a food processor, combine beans, vinegar, oil, garlic, coriander, paprika, cayenne, and 2 tablespoons water.
2.Process until very smooth, about 1 minute, scraping down bowl as needed. Season with salt and pepper. Transfer to serving bowl, and garnish with paprika and a drizzle of olive oil, if desired. Store in an airtight container in the refrigerator for up to three days.