Preheat oven to 350 degrees F. Coat a 9×5-inch loaf pan with cooking spray and set aside.
In a large bowl or stand mixer, combine the butter, brown sugar, milk, eggs and vanilla. Beat on medium speed until mixture is creamy.
In a medium bowl, combine the flour, baking powder, salt and apple pie spice (or cinnamon and nutmeg). Gradually add the flour mixture to the large bowl and mix until fully incorporated. Fold in the apples and pour into the prepared loaf pan.
To make the topping, combine 2 tablespoons of melted butter with 1/2 cup each of flour and brown sugar. Mix with a fork until crumbly and pour evenly over the top of the batter.
Bake in the preheated oven for 45-50 minutes. When a toothpick inserted into the center comes out clean, the bread is done. Cut into slices and serve warm.