First, peel, quarter, and core the apples. Dice them. Mix together the flour, baking powder, and 1 teaspoon of cinnamon.
Next, cream the butter, salt, and sugar using an electric mixer.
Add the eggs one by one. Alternately add the flour mixture and the milk. Fold in the diced apples.
Pour the batter into a greased and floured loaf pan or cake pan.
Mix the brown sugar with 4 teaspoons of cinnamon and sprinkle evenly over the cake.
Then, bake in a preheated oven (electric oven: 180°C / fan-assisted oven: 160°C) for about 40 minutes.
Perform the toothpick test. Remove from the oven and let cool.
