This easy homemade fish taco sauce is creamy, zesty, and packed with bold flavors, making it the perfect finishing touch for your tacos. The combination of mayo, sour cream, lime juice, and a hint of sriracha creates a balance of tangy, smoky, and slightly spicy flavors. Whether you’re making grilled, fried, or baked fish tacos, this sauce will take them to the next level. Try this homemade recipe for a quick dinner idea on taco night!