The New York City Wine & Food Festival is about to bring a million food stars to town in support of two excellent hunger-fighting organizations: the Food Bank for New York City and Share Our Strength. So it’s more than appropriate that chef/hero Mario Batali is unofficially kicking off the weekend with a charity event of his own. Tonight at Del Posto, Mario will host a supersonic dinner and auction to raise money for the Mario Batali Foundation, whose admirable mission is to make sure kids are well read, well fed and well cared for. The guest list: Mary J Blige, R.E.M., Maggie Gyllenhaal and more special guests yet to be announced. The signature cocktail: Batali Rocks (gin, fresh clementine juice, gold flake garnish), created by über-mixologist Tony Abu Gamin who will be there mixing them at the party. The Batali-made menu: shrimp scampi with soft polenta; roast pork with Parma Lambrusco conserva. The auction items: the subject of tomorrow’s blog.