Prepare pie paste and line the buttered pie pan. Preheat the oven to 400. Melt butter in tin cup; beat eggs in small bowl. In large bowl blend both sugars, flour, and nutmeg with fingers until no lumps remain. Stir in vinegar, eggs, butter and 1 cup of water until well mixed. Pour into pie shell and bake at 400 for 30 minutes. Remove and cool until the filling is firm enough for cutting.