This coffee cake features a moist sour cream cake layered with cinnamon sugar and topped with a buttery streusel crumble. Perfect for breakfast, brunch, or dessert.
For the Streusel Topping:
1 cup all-purpose flour
1 cup packed brown sugar
1 teaspoon ground cinnamon
Pinch kosher salt
1/2 cup unsalted butter, softened
For the Cinnamon Layer:
1/4 cup sugar
1 tablespoon all-purpose flour
1/2 teaspoon ground cinnamon
For the Cake Batter:
3 cups all-purpose flour
2 1/4 cups sugar
3/4 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon kosher salt
1 cup unsalted butter, softened
1 cup sour cream
1/4 cup whole milk
4 large eggs
1 tablespoon vanilla extract
1. Preheat oven to 350°F and grease a 9×13-inch baking pan
2. Make the streusel by combining flour, brown sugar, cinnamon, salt, and butter until crumbly
3. Mix sugar, flour, and cinnamon for the cinnamon layer and set aside
4. Combine flour, sugar, baking powder, baking soda, and salt in a large bowl
5. Mix in softened butter until the mixture resembles moist sand
6. Whisk sour cream, milk, eggs, and vanilla together
7. Add wet ingredients to dry ingredients and mix until combined
8. Spread half the batter into the prepared pan
9. Sprinkle the cinnamon sugar layer evenly over the batter
10. Spread remaining batter carefully on top
11. Cover with streusel topping
12. Bake for about 55 minutes or until a toothpick comes out clean
13. Cool completely before slicing and serving
Do not overmix the batter
Greek yogurt may replace sour cream
Use real butter for the best streusel texture
Cover loosely with foil if the topping browns too quickly
Freeze wrapped cake for up to 3 months