Beat the softened butter and grained sugar together in a large bowl until smooth and creamy. One at a time, beat in the eggs; then, mix in the vanilla essence.
Combine the dry ingredients:
In one another dish, whisk the flour and baking powder.
Combine dry ingredients into wet ingredients:
Alternately with the milk, gradually whisk the dry ingredients into the creamed mixture until just mixed.
Put the bread together.
Fill the ready loaf pan half full of batter. Over the batter, toss half of the apple mixture; then, top with half of the brown sugar-cinnamon mixture.
Pour the remaining batter over the apple layer; top with the remaining apple mixture; then top with the brown sugar-cinnamon mixture.
Bake until a toothpick put into the loaf’s middle comes out clean, 50 to 60 minutes in the preheated oven.
Get the glaze ready.
Combine the powdered sugar, milk (or cream), and vanilla extract (if using) in a bowl until smooth while the bread cools. Add a little more milk until the glaze reaches a dripping consistency if it is very thick.
Once the bread has cooled, sprinkle the glaze over top. Set the glaze then cut and present.
Enjoy!