Preheat oven to 350 degrees F. Butter a 9-inch springform pan (or use a 9 x 13 pan) Note: ( if you use a springform pan be sure you grease up the sides so it doesn’t stick) and coat with the breadcrumbs. Toss both sugars together and set aside. Peel and core the apples then slick one apple into 16 wedges. Combine the cinnamon and 1 / 2 cup of the sugar mixture in a medium bowl. Add the apple wedges and toss to coat. Roughly dice the remaining apple. In the bowl of an electric mixer fitted with a paddle attachment beat together the butter and the remaining sugar mixture on medium speed until light fluffy, and lemon colored, about 2 minutes. Add the egg and mix until combined. Reduce the speed to low and add the flour and baking powder. Slowly add the milk, and mix until combined. Fold the diced apple into the batter. Pour the batter into prepared pan and spread evenly. Arrange the apples along the outer edge of the plan and in the middle. Bake for 35 to 40 min (I baked mine 40 in an electric oven), or until the center is golden brown.