1.Preheat oven to 350 degrees. Melt butter in microwave and spread it at the bottom of a 8 x 8 baking dish. Place Oreos all over melted butter to cover in a single layer.
2.In a medium mixing bowl whisk flour, salt, and baking powder. Add in sugar, vanilla and milk. Stir until batter forms. Don't over mix.
3.Dollop batter all over the broken cookies in baking dish. Sprinkle brown sugar over the batter. Pour hot water over the brown sugar and batter.
4.Bake for 35 minutes in 350 degree oven. Allow to rest on stovetop for 5 minutes before serving. Enjoy with ice cream or whipped topping.