Apple Streusel Cake

Closup on some sliced apple streusel bars.

5 from 1 vote

Apple Streusel Cake is the fall treat y'all deserve. This simple coffee cake includes oatmeal and plenty of fresh apples, along with the tastiest streusel topping! We love this fall cake for breakfast alongside a cup of coffee!

Course Dessert

Cuisine American

Keyword apple coffee cake, apple streusel cake

Prep Time 25

Cook Time 40

Total Time 1 5

Servings servings

Calories 324kcal

Author Sue Ringsdorf

Ingredients

For the apples:

3 medium Honey Crisp apples (3 cups) - peeled and diced
1 Tablespoon unsalted butter
1 teaspoon ground cinnamon
1-2 Tablespoons water

For the cake:

1/2 cup unsalted butter - melted and slightly cooled
1/2 cup buttermilk
1 large egg
2 teaspoons vanilla extract
1 cup brown sugar
1 cup all-purpose flour
1 cup old fashioned oatmeal - processed
1 teaspoon baking soda
1 teaspoon baking powder
1/2 teaspoon kosher salt
1 teaspoon ground cinnamon

For the streusel topping

1/2 cup all-purpose flour
1/2 cup brown sugar
1/2 teaspoon kosher salt
1/2 teaspoon ground cinnamon
1/4 cup cold unsalted butter - diced

Instructions

Prep. Preheat oven to 350 degrees f. Add some parchment paper to an 8x8 pan.
Prep apples. Peel and dice about three medium Honey Crisp apples. The small chunks of apples should equal about three cups.
Par-cook apples. In a medium bowl, combine diced apples, butter, cinnamon, and apple. Place in microwave and cook on high power for about three minutes, or until slightly tender. Set aside.
3 medium Honey Crisp apples (3 cups), 1 Tablespoon unsalted butter, 1 teaspoon ground cinnamon, 1-2 Tablespoons water
Process oatmeal. Add old-fashioned oatmeal to a small food processor. Pulse to process the oatmeal into crumbs (like flour).
Make batter. In a large bowl, combine the wet ingredients - buttermilk, egg, vanilla extract, brown sugar, and slightly cooled butter. Use a whisk to combine well. Then add the dry ingredients - flour, processed oatmeal, baking soda, baking powder, salt, and cinnamon. Use a spoon to mix until just combined. Don't over-stir.
Add apples. Pour the apples into the butter and gently stir.
1/2 cup buttermilk, 1 large egg, 2 teaspoons vanilla extract, 1 cup brown sugar, 1/2 cup unsalted butter
1 cup all-purpose flour, 1 cup old fashioned oatmeal, 1 teaspoon baking soda, 1 teaspoon baking powder, 1/2 teaspoon kosher salt, 1 teaspoon ground cinnamon
Make streusel topping. In a separate medium bowl, combine the streusel ingredients - flour, brown sugar, cinnamon, salt, and cold butter. Use your hands to press the cubed butter into the ingredients.
1/2 cup all-purpose flour, 1/2 cup brown sugar, 1/2 teaspoon ground cinnamon, 1/2 teaspoon kosher salt, 1/4 cup cold unsalted butter
Assemble. Pour the cake batter into the prepared pan, smoothing evenly to all sides. Then add the crumble topping to the top of the cake.
Bake. Bake the coffee cake in the preheated oven for approximately 40 minutes, or until done in the center.
Rest. Let the cake sit in the pan for about 20 minutes and then use the parchment paper (handles) to gently lift the cake out of the cake pan. Place on a wire rack to let cake cool. (Or eat it warm!)
Serve. Serve apple streusel cake with Toddy Cold Brew Coffee or a Caramel Latte.

Notes

Store leftover apple cake in an airtight container at room temperature for several days.

Freeze cake for up to three months. I often wrap each slice in plastic wrap and then place in freezer bag. A great way to enjoy one at a time when you get the craving!

Nutrition