Late night spots in Park Slope/Prospect Heights.
The Vanderbilt and Cornelius on Vanderbilt ave in Prospect Heights are both open that late.My daughters have had good meals at both of these. James on the Corner of Carlton/St marks is also open til 11. I think the food there is quite tasty. Flatbust Farm and Piquant on flatbush, both near the intersection of flatbush and 6th are also open that late but I cant attest for their quality. Geido and Taro sushi, both on Flatbush are open til 10"30 or so.
331 Flatbush Ave, Brooklyn, NY 11217