Start by washing the cilantro leaves thoroughly to remove any dirt or grit. Roughly chop the leaves and set them aside. Mince the garlic cloves finely to release their flavor.
In a medium mixing bowl, add 1 cup of sour cream or Greek yogurt. Use Greek yogurt for a thicker consistency and a tangy flavor, or sour cream for a creamier texture.
To the bowl, add the chopped cilantro, salsa verde, minced garlic, and the juice of 1 lime. The salsa verde adds a wonderful depth of flavor, so don't skip this ingredient!
Sprinkle in the Kosher salt and add pepper to taste. Start with a little and adjust based on your preference.
Using a whisk or fork, mix all the ingredients together until you achieve a creamy, smooth consistency. Taste and adjust the seasoning if needed; sometimes a little extra lime juice or salt can make a big difference.
Once combined, cover the bowl with plastic wrap or transfer the sauce to an airtight container. Refrigerate for at least 30 minutes to let the flavors meld together. The waiting is the hardest part, but it’s worth it!