Step 1

Prepare the following, adding each to a blender or food processor with the blade attachment as you complete it: Juice 1 large lemon until you have 1/4 cup, coarsely chop 1 medium yellow onion until you have 1/2 cup, and coarsely chop 2 garlic cloves.

Step 2

Add 1 cup mayonnaise, 1/2 cup ketchup, 1/2 cup chili sauce, 1/2 cup safflower oil, 1 tablespoon Worcestershire sauce, 1 tablespoon paprika, 1 teaspoon kosher salt, 1 teaspoon black pepper, and 1/2 teaspoon dry mustard. Blend until smooth, about 1 minute.