I haven't tried this yet, but it sounds really cool.

(From DC Foodies.com)

To Market/To Market dinner that Robert Weland at Poste Brasserie is doing every Thursday night. Starting at 6 PM, You meet at Post Brasserie in Penn Quarter and Robert takes you shopping at the Penn Quarter farmers Market for fresh ingredients which he then prepares for you for dinner in a special dining area near his own garden. On top of that, the meal is served with a selection of biodynamic wines selected to go with the dishes that Robert creates. The meal costs $60 per person. For reservations, call or email Dani Williams-Jones at 202 783 6060 x162 or [email protected].