This apple cinnamon coffee cake recipe is a perfect breakfast or brunch treat. The cake is made with fresh apples, cinnamon, and a touch of nutmeg. The batter is moist and fluffy, and the apples add a nice texture and flavor. The streusel topping is made with brown sugar, cinnamon, and butter. This cake is perfect with a cup of coffee or tea. It's a crowd-pleaser and always disappears quickly!