all-purpose flour ground ginger applesauce apple cider vinegar
Preheat oven to 350 degrees. Oil three 9-inch cake pans, and line the bottoms with a circle of parchment paper.
Combine the flour, baking powder, baking soda, cinnamon, ginger and salt in a large bowl. In a smaller bowl whisk together the milk, applesauce, vinegar, oil, vanilla, sugar and brown sugar.
Pour the wet mixture into the dry and whisk briefly, just until thoroughly mixed. Divide the batter evenly among the three pans, and bake 25 to 30 minutes, or until the tops bounce back when lightly pressed.
In a medium saucepan over medium heat, cook the apples, brown sugar and maple syrup until the apples have softened and the mixture has thickened, about 10 to 15 minutes.
In a mug or small bowl whisk the corn starch into the bourbon and add to the pan. Cook for another 3 to 5 minutes or until all the liquid has evaporated and the filling is jam-like.