This freebie goes great with two all-beef patties, lettuce, cheese, pickles, onions on a sesame seed bun.
McDonald's is giving away 10,000 bottles of Big Mac Special Sauce on Thursday on a first come, first serve basis in a nationwide promotion. Visit participating locations between 3 and 6 p.m. by saying the secret code "There's a Big Mac for that" at participating restaurants, according to a news release.
The limited-edition bottles are numbered and say "We can't wait to show you what's next at McDonald's."
No word on what new menu items are in the works, but the bottled sauce giveaway follows the introduction of Mac Jr. and Grand Mac burgers, available in restaurants through March 20. The chain also reformulated its Chicken McNuggets and introduced All Day Breakfast menu items in 2015 to pump up sales and attract more diners.
Supplies are limited.
Click here to find a participating location.