Ingredients:
The full recipe with measurements and instructions can be found at the bottom of this post! This is just a quick guideline to make sure you have all the ingredients in your kitchen!
Cinnamon Filling
Light brown sugar
All purpose flour
Ground cinnamon
Crumb Topping
Melted butter
Light brown sugar
Ground cinnamon
All purpose flour
Cake
Room temperature butter
Light brown sugar
Large eggs
Vanilla extract
Sour cream. You can also use full fat Greek Yogurt if you prefer.
Kosher salt
Baking powder
Milk
All purpose flour
Icing
Confectioners/Powdered sugar
Milk
How Do You Make Coffee Cake?
Preheat oven to 350°F. Coat a 9×13 baking dish with nonstick spray. Set aside.
For the Cinnamon Filling: In a medium bowl prepare the cinnamon filling by whisking together the brown sugar, flour, and cinnamon until combined. Set aside.
For the Crumb Topping: mix together the melted butter, brown sugar, cinnamon, and flour in a medium bowl until it resembles coarse crumbs. Use your hands to mix to form larger crumb pieces. Set aside.
For the Cake: mix the butter, granulated sugar, and light brown sugar in the bowl of your stand mixer fitted with the paddle attachment on medium speed for 2 minutes until light and fluffy. You can also use a hand mixer.
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 with a rubber spatula as necessary.
Turn the mixer to low and add in the flour and milk in alternating portions, beginning and ending with flour. Mix/stir until just combined and smooth, again, scraping the sides of the bowl as necessary.
Assemble: Spread half of the cake batter into the prepared pan. Sprinkle the cinnamon filling evenly on top of the batter. Carefully spread the remaining cake batter on top of the cinnamon layer. Evenly sprinkle the crumb topping on top.
Bake for 40-45 minutes, or until the cake is set and a toothpick inserted in the center comes out clean.
Remove cake from oven and place pan on a wire rack to cool completely.
For the Icing: Whisk together the powdered sugar and milk until smooth and drizzle on top of the cooled cake. Or alternately sprinkle with powdered sugar instead of making the icing.
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