Dish of the Week: Frozen yogurt With the crazy heat, the line at Tangysweet should be long with their free promotion today. If you can't make it to the brand new Dupont frozen yogurt shop, we've got a couple of alternatives for you. Sweetgreen in Georgetown, City Market (bodega on the SW corner of 17th and M Streets NW), and Ice Berry in Reston Town Center all sell the Korean-style frozen yogurt with fruit toppings.......