Put all the ingredients in a blender , and blend until the chipotle peppers are ground up. If you want a runnier ranch, add milk to get your desired consistency.
1 cup mayonnaise, ½ cup sour cream, ½ tsp dried chives, ½ tsp dried dill weed, ½ tsp dried parsley flakes, ½ tsp garlic powder, ½ tsp onion powder, ¼ tsp black pepper, ¼ tsp salt, 2-4 whole chipotle peppers in adobo sauce