This classic coffee cake features a moist, buttery crumb layered with a cinnamon-sugar streusel topping—perfect for breakfast, brunch, or a cozy afternoon treat.
Author:Laura
Prep Time:20 minutes
Cook Time:40 minutes
Total Time:1 hour
Yield:12–15 servings
Category:Breakfast, Brunch, Dessert
Method:Baking
Cuisine:American
Diet:Vegetarian
Ingredients
2 1/2 cups all-purpose flour
1 cup granulated sugar
3/4 cup brown sugar (for streusel)
2 tsp baking powder
1/2 tsp baking soda
1/2 tsp salt
3/4 cup unsalted butter, softened (plus 1/2 cup cold butter for streusel)
2 large eggs
1 cup sour cream
1/4 cup milk
2 tsp pure vanilla extract
1 tbsp ground cinnamon (for streusel)
Instructions
Preheat oven to 350°F (175°C). Grease or line a 9×13-inch baking dish.
Make the streusel: In a bowl, combine brown sugar, 3/4 cup flour, cinnamon, and 1/2 cup cold cubed butter. Mix with fingers or pastry cutter until crumbly. Set aside.
In a large bowl, whisk together remaining flour, baking powder, baking soda, and salt.
In a separate bowl, cream softened butter and granulated sugar until fluffy.
Beat in eggs one at a time. Add sour cream, milk, and vanilla extract, and mix until smooth.
Gradually mix dry ingredients into wet ingredients until just combined.
Spread half of the batter in the prepared pan and smooth the surface.
Sprinkle half the streusel evenly over the batter.
Add the remaining batter and gently spread to cover the streusel layer.
Top with remaining streusel.
Bake for 35–40 minutes, or until a toothpick inserted in the center comes out clean.
Let cool for 15–20 minutes before slicing and serving.
Notes
Don’t overmix the batter to keep the cake light and tender.
Double the streusel for extra crumb topping if desired.
Add a glaze after baking by mixing powdered sugar with a splash of milk.
You can make this cake a day ahead for convenience.