I was walking up Fifth Ave in midtown yesterday, something that would usually be a pretty dreary exercise especially given the cold, rainy weather. Suddenly, there was a flash of silver ahead and the semi-mythical Treats Truck came into view, parked no 38th Street. Known for it's brownies and sandwich cookies, the truck has been cruising around NYC for a couple years now and getting rave reviews for it's sweet and reasonbly priced treats.