Momofuku's Christina Tosi Rolling Out Pop-Up Food Truck

It's the ultimate 2012 food trend mashup: a pop-up cookie truck!

Christina Tosi, best known as the pastry chef behind David Chang's burgeoning Momofuku restaurant empire and the dessert shop Milk Bar, has partnered with American Express to launch a holiday cookie truck that will be making stops throughout Manhattan and Brooklyn on Saturday, Dec. 15.

It's part of a marketing campaign meant to showcase American Express' commitment to helping grow small businesses (Tosi was influenced by her mother, and in just two years has expanded her empire to five bakeries and a commissary), but at the end of the day it's really just about the free cookies. If you haven't tried Milk Bar's cookies (they're available at her shops as well as the Union Square Holiday Market), you're missing out.

You can follow the truck's journey through the city via Twitter by using the hashtag #AmexMakeMyDay, but they'll also be sticking to the following schedule:

11:00 a.m. to 11:45 a.m.: Stop 1: Central Park South — Columbus Circle Area
12:10 p.m. to 12:55 p.m.: Stop 2: Madison Square Park Area
1:20 p.m. to 2:05 p.m.: Stop 3: Union Square — 16th Street & Union Square West
2:30 p.m. to 3:15 p.m.: Stop 4: SoHo- Houston Street & Greene Street
3:40 p.m. to 4:25 p.m.: Stop 5: Williamsburg — Bedford Avenue & North Seventh Street
4:50 p.m. to 5:35 p.m.: Stop 6: Fort Greene Park — Cumberland Street & Dekalb Avenue

Go get some free cookies!