Coffee Cake

Ingredients: 

Cinnamon Filling 

3/4 C. light brown sugar 

3/4 C. all purpose flour 

2 t. ground cinnamon 

Crumb Topping 

6 T. butter, melted 

1 C. light brown sugar 

1 1/2 T. ground cinnamon 

1 C. all purpose flour 

Cake Batter 

1 C. butter, room temperature 

1 C. granulated sugar 

2/3 C. light brown sugar 

3 eggs 

1 T. vanilla extract 

3/4 C. sour cream 

1 t. kosher salt 

3 t. baking powder 

1 1/4 C. milk 

3 2/3 C. all purpose flour 

Icing - Optional 

1 C. powdered sugar 

2–3 T. milk 

Directions: 

1. Preheat oven to 350°F. 
2. Coat a 9×13 baking dish with nonstick spray. Set aside. 
3. In a medium bowl prepare the cinnamon filling by mixing together the brown sugar, flour, and cinnamon until combined. Set aside. 
4. To prepare the crumb topping, mix together the melted butter, brown sugar, cinnamon, and flour in a medium bowl until it resembles coarse crumbs. Set aside. 
5. For the cake, mix the butter, granulated sugar, and light brown sugar on medium speed for 2 minutes until light and fluffy. 
6. Add in the eggs, vanilla, sour cream, salt, and baking powder and mix for 1 minute until combined and smooth, scraping the sides of the bowl as necessary. 
7. Turn the mixer to low and add in the flour and milk in alternating portions, beginning and ending with flour. 
8. Mix until just combined and smooth, scraping the sides of the bowl as necessary. 
9. Spread half of the cake batter into the prepared pan. 
10. Sprinkle the cinnamon filling evenly on top of the batter. 
11. Carefully spread the remaining cake batter on top of the cinnamon layer. 
12. Evenly sprinkle the crumb topping on top. 
13. Bake for 40-45 minutes, or until a toothpick inserted in the center comes out clean. 
14. Remove cake from oven and place pan on a wire rack to cool completely. 
15. Optional - Whisk together the powdered sugar and milk until smooth and drizzle on top of the cooled cake.