• Preheat: Heat the oven to 350°F. Grease or line a 9x5-inch loaf pan with parchment paper.
• Cinnamon sugar: Mix the brown sugar and cinnamon in a small bowl.
• Apples: Peel, core, and chop the apples into small pieces.
• Cream: Beat the butter and granulated sugar for 2 to 3 minutes until light and fluffy.
• Eggs: Add the eggs one at a time, mixing well after each.
• Dry ingredients: Whisk the flour, baking powder, and salt in a separate bowl. Add to the butter mixture and mix on low until blended.
• Milk: Mix in the milk just until smooth.
• First layer: Spread half the batter in the pan. Top with half the apples and half the cinnamon sugar.
• Second layer: Add the remaining batter, then the remaining apples and cinnamon sugar.
• Swirl: Gently press the apples into the batter and swirl with a knife.
• Bake: Bake 50 to 60 minutes, until a toothpick in the center comes out clean.
• Cool: Cool in the pan 15 minutes, then move to a wire rack.

Glaze (optional)

• Make the glaze. In a small bowl, stir together the powdered sugar and 1 tablespoon of milk. If it’s too thick to drizzle, add a little more milk, a few drops at a time.
• Glaze the loaf. Once the bread is mostly cool, drizzle the glaze back and forth over the top with a spoon. Let it set for about 10 minutes before slicing.