Ingredients
Equipment
Method
Mix dry ingredients
- Whisk all-purpose flour, baking powder, and cinnamon together until evenly combined.
- Whisking creates a uniform spice distribution so the loaf has consistent cinnamon flavor in every bite.
Mix wet ingredients
- Beat softened unsalted butter and granulated sugar until fluffy, about 2 minutes.
- Beat in large eggs one at a time, then mix in milk until smooth.
Combine batter and apple
- Fold the dry ingredients into the wet ingredients until just combined, taking care not to overmix.
- Fold in diced apple (tossed lightly in flour first) until the pieces are evenly distributed.
Make the swirl
- Stir brown sugar and cinnamon for swirl together until it forms an even cinnamon-sugar mixture.
Assemble the loaf with swirl
- Pour half the batter into a greased loaf pan and sprinkle with half the cinnamon sugar.
- Swirl the cinnamon sugar gently through the batter using a figure-eight motion without stirring completely through.
- Repeat with the remaining batter and remaining cinnamon sugar, then swirl again gently.
Bake
- Bake at 350°F for 55-60 minutes, until a toothpick comes out mostly clean.
- Let the loaf cool before glazing so the glaze stays glossy instead of melting into the crumb.
Glaze and serve
- Whisk powdered sugar and milk for glaze together until smooth.
- Drizzle the glaze over the cooled loaf, then slice once set for clean ribboned pieces.
Notes
Toss the diced apple in a little flour before folding so the pieces don’t sink and you get evenly distributed fruit in every slice. Store airtight at room temperature up to 2 days or refrigerate up to 5 days; freeze slices in a sealed bag up to 2 months. For a lighter option, substitute unsalted butter with an equal amount of plant-based butter stick.
