These Zippy Southwest Smash Burgers are gloriously messy, cheesy, crispy-edged beauties layered with caramelized onions, jalapeños, and our creamy Zippy Southwest Burger Sauce. We tested and tweaked this recipe again and again until it became absolutely crave-worthy.

This easy homemade Southwest burger sauce is creamy, tangy, and gently spicy. Made with just four ingredients, it’s perfect for smash burgers, sandwiches, fries, wraps, and dipping.

Test kitchen happenings! Will the smash burger work with the ‘double trouble’ (beef and pork) approach?