Apple Coffee Cake
This sour cream coffee cake features light brown sugar, vanilla bean paste, and fresh peeled and diced apple. The cake is topped with a brown sugar and cinnamon streusel topping and baked until golden. The apple coffee cake with streusel topping is drizzled with an apple cider glaze.
Ingredients
Streusel:
- 187 grams all-purpose flour (1-1/2 cups)
- 200 grams light brown sugar (1 cup, packed)
- 6 grams ground cinnamon (1-1/2 teaspoons)
- 1 grams ground nutmeg (1/4 teaspoon)
- 170 grams butter (3/4 cup) cold + cubed
Cake:
- 240 grams peeled and diced apple (2 large)
- 16 grams all-purpose flour (2 tablespoons)
- 226 grams unsalted butter (1 cup), room temperature
- 150 grams granulated sugar (3/4 cup)
- 150 grams light brown sugar (3/4 cup)
- 150 grams egg (3 large), room temperature
- 10 grams vanilla bean paste (2 teaspoons)
- 180 grams sour cream or plain yogurt (3/4 cup)
- 470 grams all-purpose flour (3-2/3 cups)
- 5 grams fine sea salt (1 teaspoon)
- 15 grams baking powder (1 tablespoon)
- 300 grams whole milk (1-1/4 cups)
Glaze:
- 125 grams powdered sugar (1 cup)
- 30 grams whole milk or apple cider (2 tablespoons)
- 3 grams vanilla bean paste (1/2 teaspoon)
Instructions
Streusel:
- Add all-purpose flour, light brown sugar, ground cinnamon, and ground nutmeg to a small mixing bowl. Whisk to combine. Add cold cubed butter to flour mixture. Cut butter in using the back of a fork or a pastry blender. Cover and chill until ready to use.
Cake:
- Preheat oven to 350 degrees F. Butter a 9 x 13-inch baking pan. Outfit with parchment paper sling, if desired. Set aside.
- Add peeled and diced apple to small bowl. Toss with 2 tablespoons all-purpose flour. Set aside.
- Add unsalted butter, granulated sugar and light brown sugar to stand mixer. Using paddle attachment, beat on low for 3 minutes, or until light and fluffy.
- Add the eggs, one at a time. Beat on low until fully incorporated, after each addition. About 30 seconds.
- Add the vanilla bean paste and sour cream. Beat on low until fully incorporated. About 30 seconds.
- Add the 470 grams of all-purpose flour, fine sea salt, and baking powder to a large mixing bowl. Whisk to combine.
- Remove the stand mixer bowl from the stand mixer. Add 1/2 the flour mixture to the stand mixer bowl. Fold in with large spatula, just until combined. Add 1/2 the milk and fold in, just until incorporated. Repeat the process with the remaining flour and milk.
- Add the reserved apple pieces to the cake batter and fold in with a large spatula.
- Pour the batter into the prepared pan, and spread evenly into the corners with a spatula.
- Sprinkle streusel mixture over the cake batter.
- Bake in preheated oven for 45 minutes, or until a toothpick inserted in the center comes out clean.
- Remove the baking pan from the oven and place on wire rack to cool.
Glaze:
- Add powdered sugar, whole milk, and vanilla bean glaze to small bowl. Drizzle glaze over cooled cake before serving.
- Whisk together powdered sugar, milk, and vanilla for the glaze. Drizzle over cooled coffee cake and serve.