Mix the base In a medium bowl, combine salsa and sour cream. Stir until smooth.
Add the spices Stir in lime juice, chili powder, garlic powder, cumin, smoked paprika, salt, and black pepper.
Taste and adjust Add more lime for tang, more chili for heat, or a pinch of salt if needed.
Chill (optional) Refrigerate for 10–15 minutes to let flavors meld, though it can be served immediately.
Serve Drizzle over tacos, spread on burritos, or use as a dip for chips.