Combine sour cream, apple cider vinegar, lime juice, and maple syrup in a medium bowl until well-mixed.
In a small bowl, combine the dry spices: the ancho chili powder, cumin, garlic powder, onion powder, smoked paprika, salt, cayenne pepper, and black pepper.
When spices are thoroughly mixed, add the spice mixture to the sour cream mixture and stir until well combined.
Pour over your salad of choice and enjoy! You may also store the dressing in a mason jar or airtight container in the refrigerator for up to 4 days. Be sure to store it separately from the salad to avoid soggy lettuce.