Add the sour cream, mayonnaise, lime juice, and lime zest to a medium bowl. Whisk until smooth and fully combined.
Add the garlic powder, cumin, smoked paprika, and hot sauce. Whisk again until uniform in color and texture.
Taste and adjust — add more lime juice for brightness or more hot sauce for heat. Season with salt.
Refrigerate for at least 10 minutes before serving to let the flavors develop fully.
Notes
- For a lighter version, substitute Greek yogurt for the sour cream. - This sauce keeps well in the fridge for up to 1 week in an airtight jar. - Works great as a dip for shrimp, fried fish, or veggie tacos.
Keyword fish taco sauce, creamy fish taco sauce,baja sauce, homemade taco sauce