In a medium bowl, add mayonnaise and ketchup as your base for the Blooming Onion Sauce. Incorporate prepared horseradish sauce, granulated garlic, smoked paprika, ground cumin, dried oregano, kosher salt, and black pepper.

Using a whisk or spatula, mix all the ingredients together until creamy and well-blended, aiming for a smooth consistency.

Cover with plastic wrap or transfer to an airtight container and chill in the refrigerator for at least 30 minutes to meld the flavors.

Gently stir the sauce before serving alongside crispy fried foods like onion rings, French fries, or chicken strips.