Start by collecting all the ingredients listed above. This will make the process smooth and efficient.
Using a grater, finely grate the yellow onion. Ensure you include the juices as they hold essential flavor.
In a mixing bowl, add the grated onion, good quality mayo, sweet pickle relish, yellow mustard, and white vinegar. Stir these ingredients together until they are well combined.
Next, sprinkle in the sweet paprika, onion powder, garlic powder, and salt. Mix thoroughly to ensure that the spices are evenly distributed throughout the sauce.
Now, taste your sauce! If you prefer a sweeter sauce, add a bit more pickle relish. For extra tang, a dash more of vinegar or mustard can do wonders.
Transfer the sauce into a storage container and let it sit in the refrigerator for at least 30 minutes. This allows the flavors to meld beautifully.
After chilling, your Easy Copycat Big Mac Sauce is ready to use! Spread it on burgers, sandwiches, or use it as a dip for fries. Enjoy!