01 - Whisk together mayonnaise and sour cream in a medium bowl until completely smooth and well combined.
02 - Mix in minced jalapeños, jalapeño brine, garlic, cumin, onion powder, salt, and black pepper until fully incorporated.
03 - Stir in fresh lime juice and chopped cilantro, ensuring even distribution throughout the mixture.
04 - Cover bowl and refrigerate for at least 1 hour to allow flavors to meld. Stir well before serving chilled.