Preheat the oven to 350 degrees. Spray a bread pan with cooking spray and set aside.
In a large bowl combine the sugar and butter. Add in the eggs and mix well. Stir in the vanilla.
In a medium bowl combine the flour, baking powder, salt, and cinnamon. Mix well.
Add half of the flour mixture to the butter mixture and mix well. Add in the milk and stir until combined. Mix in the remaining flour and stir until combined.
Fold in the apples.
Pour into the prepared pan and bake for 1 hour or until the bread is cooked through.
Remove from oven and cool on a wire rack. Slice and store in an air tight container for 5 days.