Gather your ingredients, measuring them out to streamline the process.
In a large mixing bowl, combine the sour cream and mayonnaise. Mix until completely blended.
Add the dry ranch dressing mix, tomatillo salsa, and chopped cilantro. Stir until well incorporated.
Fold in the pickled jalapeño peppers, ensuring they are evenly distributed.
Squeeze in the fresh lime juice to enhance the flavors. Mix well.
Taste the dip and adjust seasoning or spice level as desired.
Cover and refrigerate for at least an hour before serving to allow flavors to meld.