Preheat oven to 350°F/180C
Place 1/3 cup butter in a 9x9-inch baking pan.
Place in oven 5 minutes or until butter melts.
Sprinkle brown sugar over butter and stir until the brown sugar melts into the butter.
Peel 3 medium apples and slice them thinly (Used the apple slicer in the product list below)
Arrange the apple slices on top of the butter and brown sugar mixture in a pattern as shown in the photo. Keep the rest of the apple slices aside that you don't use.
Bake in oven 10 to 15 minutes or until bubbly.
Using a grater, coarsely shred the remaining apple slices. You will have close to a cup depending upon the size of your apples. Set aside.
In bowl combine flour, granulated sugar, baking powder, ginger, and cinnamon.
Add shredded apple, milk, 1/4 cup butter, egg, and vanilla.
Beat with electric mixer on low until combined; beat on medium 1 minute.
Spoon the batter over the apples, brown sugar and butter, spread evenly (apple may be exposed; some butter may come to surface).
Bake 35 to 40 minutes or until wooden toothpick inserted near center comes out clean.
Cool in pan on wire rack for 5 minutes.
Loosen edges and invert onto a plate big enough for the cake.
Spoon any topping in pan over top.
After 20 minutes cut into squares and serve with ice cream!
Enjoy.