Zest the lime, then squeeze the juice into a small bowl.
Add about 1 tsp of the zest and 1 Tbsp of the juice to the sour cream, along with the garlic and salt. Stir to combine and use immediately, or refrigerate until ready to serve. Store the lime crema in the refrigerator for up to one week.
The ingredient proportions of this recipe are flexible. You can add more or less lime zest, juice, or salt to your liking.If fresh garlic is not available, 1/4 tsp garlic powder can be used in its place.