Ingredients
Equipment
Method
Prep
- Preheat the oven to 350 F (175 C) and grease and line a 9x5-inch loaf pan with parchment. Set the pan aside for filling.
- Mix the light brown sugar and 1 tsp ground cinnamon in a small bowl until evenly combined. This will form your cinnamon-sugar layer.
- Toss the diced apples with 1 tbsp granulated sugar and 1/2 tsp ground cinnamon until coated. Let them sit while you make the batter.
Make the batter
- Beat the softened unsalted butter and 2/3 cup granulated sugar until fluffy. The mixture should lighten in color.
- Beat in the eggs one at a time, then beat in the vanilla extract. Stop once the batter looks smooth.
- Whisk the all-purpose flour, baking powder, and salt together. This helps distribute the leaveners evenly.
- Add the dry ingredients to the butter mixture alternately with the milk, mixing just until combined. Avoid overmixing so the loaf stays tender.
Layer and swirl
- Spread half the batter in the prepared loaf pan and top with half the apples and half the cinnamon sugar. Smooth the apples into an even layer.
- Add the remaining batter, then scatter the remaining apples over the top and press them in lightly. Sprinkle the remaining cinnamon sugar across the surface.
- Swirl the top with a knife a few times to distribute the cinnamon-sugar through the loaf. Look for marbled streaks.
Bake and glaze
- Bake for 50 to 60 minutes at 350 F (175 C) until a toothpick comes out clean. If the top browns too quickly, tent loosely with foil.
- Cool for 15 minutes, then lift the loaf out of the pan. The loaf should firm up slightly for clean slicing.
- Whisk the powdered sugar with 1 to 2 tbsp milk to make a drizzleable glaze. Drizzle over the warm loaf so it sinks in a little.
Notes
Pro tip: toss the apples and cinnamon sugar first, then assemble promptly so they don’t release too much juice into the batter. Store covered at room temperature for up to 2 days or refrigerate up to 5 days. Freeze the baked loaf (sliced or whole) for up to 2 months; thaw overnight in the fridge and warm before serving. For a lighter option, swap half the butter with an equal amount of unsweetened applesauce (texture will be slightly more cake-like).
