Gather ingredients and ensure your avocado is ripe. In a blender, combine sour cream, avocado flesh, crushed garlic, lime zest and juice, and a pinch of kosher salt.

Blend the mixture at high speed for about 30 seconds until smooth and creamy, scraping down the sides as needed.

Taste your Avocado Crema and adjust with more lime juice or salt to your liking, then blend again briefly.

Transfer the crema into an airtight container, pressing plastic wrap directly onto the surface to prevent browning.

Refrigerate for at least 30 minutes before serving to allow flavors to meld.