This apple crumb coffee cake is a tender, cinnamon-spiced cake layered with fresh apples and topped with a thick, buttery streusel topping. Baked to golden perfection, it’s the ultimate breakfast or brunch treat that delivers comforting bakery-style flavor in every bite.
For the cake:
For the streusel topping:
Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish or line with parchment paper.
In a medium bowl, whisk together flour, baking powder, baking soda, salt, and cinnamon.
In a large bowl, cream together butter and granulated sugar until light and fluffy.
Add eggs one at a time, mixing well after each addition. Stir in vanilla extract.
Mix in sour cream until well combined. Gradually add dry ingredients and stir until just incorporated.
Fold in diced apples and spread the batter evenly into the prepared baking dish.
In a small bowl, mix brown sugar, flour, and cinnamon for the streusel. Cut in cold butter using a pastry cutter or fork until crumbly.
Sprinkle streusel mixture evenly over the batter.
Bake for 35–40 minutes, or until a toothpick inserted in the center comes out clean. Let cool before serving.
Use tart apples like Granny Smith for contrast, or sweet apples like Honeycrisp for a softer bite.
For an extra crunchy topping, add chopped pecans or walnuts to the streusel.
This cake freezes well—perfect for meal prep or holidays.
Don’t skip the sour cream! It gives the cake its signature moist, tender crumb.
You can double the streusel topping for an extra-thick crumble layer, similar to crumb cake variations.