There are some things that should stay under wraps: what your salary is, what your monthly mortgage payment is and some fast-food recipe secrets.

I was amazed by a recent YouTube video that appeared online that gives viewers the opportunity to see how that “special sauce” on one of America’s all-time favorites is made.

Sure we have known many of the ingredients in McDonald's famed Big Mac burger for years. Who can forget the famous jingle: Two all-beef patties, special sauce, lettuce, cheese, pickles, onions -- all on a sesame seed bun? 

But it turns out that the special sauce and the secret recipe of the Big Mac isn't a secret any longer. The video posted on McDonald's Canadian YouTube channel shows how the burger is made. 

Yep, you can watch as McDonald's Executive Chef Dan Coudreaut makes the burger in the comfort of his own kitchen in the video.

He adds a bit of this a bit of that, and voila!, the secret sauce is ready. And if that isn't enough, he also shares how to actually make a Big Mac itself -- at home. 

While I haven’t had a Big Mac in years, I’m not so sure this was such a good idea. I mean, why share it now and why do we need to know? Really how many of us are going to make a Big Mac at home? And if we did, would it really taste like a Big Mac? No, right?

I headed down to the McDonald's on Rte. 9 in Natick, and asked a few patrons if they would ever make the sauce or the burger at home.

Kevin Williams said it was a possibility, and was curious to see if he was up to the challenge of making the sauce. 

"You want to see if you can recreate it in your own kitchen," Williams said.  

Marcos Campos was picking up lunch with a few of his colleagues when I asked him what he thought about making the sauce at home. 

"I just don't have time to do that, I'd rather come here," Campos said.

So now that McDonald's has revealed its special secret sauce, is it also going to show us how it makes those great golden fries?

Something tells me, that won’t be any time soon. What are your thoughts? Will you watch the video and whip up a Big Mac at home?