It’s been a long-standing notion that the Big Mac “Special Sauce” is a closely-guarded secret. Much like the vaunted Coca-Cola recipe and many others, people thought they knew the recipe, but were only off by a slight bit. It was easy enough to say it was Thousand Island dressing… and it largely is.

McDonalds Canada uploaded this video recently showing what goes into a Big Mac. Naturally, three pieces of bun, two hamburger patties seasoned with salt and pepper, onions, lettuce, and pickles are all there (and continuing to be a slight disappointment, a pre-packaged slice of cheese, nothing special).

What the real interest is, and what sparked the video, was a customer’s question about what makes the Special Sauce.

Store-bought mayo, sweet pickle relish, yellow mustard, white wine vinegar, garlic powder, onion powder, and paprika are all the ingredients. Sure, they’re not giving out specific measurements, but you can eyeball it from the video.

Will you be making your own Big Macs now?