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Slice of blueberry sour cream coffee cake on a plate.

Blueberry Sour Cream Coffee Cake

Rich and delish
This blueberry coffee cake is made with a moist and soft cake filled with blueberries, and cinnamon filling, and topped with a buttery and crunchy crumble topping.
5 from 4 votes
Prep Time 30 minutes
Cook Time 40 minutes
chill time 1 hour
Total Time 2 hours 10 minutes
Course Dessert
Cuisine American
Servings 16 slices
Calories 387 kcal

Ingredients
 
 

Cake

  • 115 g Butter softened
  • 1 ¼ cups Granulated sugar
  • 1 teaspoon Vanilla extract
  • 1 tablespoon Lemon zest
  • cup Greek yogurt
  • 2 Eggs
  • ½ teaspoon Kosher salt
  • ½ cup Buttermilk
  • 2 ½ cups Flour
  • 2 teaspoon Baking powder
  • ½ teaspoon Baking soda
  • 2 cups Blueberries

Cinnamon filling

  • ¾ cup Brown sugar
  • 2 teaspoon Cinnamon
  • ¾ cup Flour
  • 60 g Butter softened

Crumble

  • 1 cup Flour
  • cup Brown sugar
  • 1 teaspoon Cinnamon
  • ½ teaspoon Kosher salt
  • 90 g Butter melted

Instructions
 

Make the cinnamon filling

  • In a small mixing bowl, add the flour, brown sugar, and cinnamon. Mix with a spoon until well combined.
  • Add the softened butter and mix with your clean hands until wet sand-like mixture forms.

Make the crumble topping

  • Into a medium mixing bowl, add the flour, brown sugar, and cinnamon. Mix with a spoon until the mixture is well combined.
  • Add the melted butter and mix until well combined and place in the fridge while you make the cake.

Make the cake

  • Into a large mixing bowl, add the softened butter, lemon zest, sugar, vanilla extract, and kosher salt. Mix with an electric hand mixer until well combined.
  • Add the yogurt and eggs, and mix until the mixture is smooth.
  • Add ½ of the flour, baking soda, and baking powder, and mix until almost combined.
  • Add the buttermilk and the rest of the flour, and mix until almost combined.
  • Add the blueberries and mix until just combined. Don't overmix!
  • Pour ½ of the cake batter into a parchment paper lined 9 by 13 baking pan and spread it with a spatula. Top it with an even coat of cinnamon filling.
  • Top with the rest of the cake batter and carefully spread it with a spatula.
  • Top the cake with the streusel topping and press the streusel topping onto the cake batter so it sticks and does not fall off while baking.
  • Bake in a 180c (350f) preheated oven for about 40-45 minutes or until a toothpick inserted into the cake comes out clean, usually with a few crumbs.

Notes

  • Push the streusel topping onto the cake lightly so it would stick to the top of the cake while baking and not fall off.
  • Use room temperature ingredients. It is important that you use room-temperature ingredients like eggs and milk. This step ensures that your mixture mixes into a homogenous mixture and bakes perfectly. you don’t want to place cold batter into the oven.
  • Don’t overmix the batter, you don’t want to develop the gluten in the flour. This step ensures you have moist cake and not dense and dry cake.
  • Measure your flour correctly! When measuring your flour, avoid scooping it with a measuring cup. Instead, stir the flour with a spoon to create as many air pockets as possible, and spoon it into your measuring cup. Finally, level it with a back of a knife.
  • Add some of your favorite add-ins! Make this recipe your own and add your favorite cake add-ins: chocolate chips, chopped walnuts, chopped pecans, chocolate chunks, banana slices, chopped fruit, and more! Be creative!
  • Be patient! I know it's extremely tempting to eat this cake as it is pulled out of the oven, but let this cake cool for at least 1 hour so it will be more firm and won't crumble up.

Nutrition

Calories: 387kcalCarbohydrates: 59gProtein: 6gFat: 15gSaturated Fat: 9gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 1gCholesterol: 57mgSodium: 363mgPotassium: 106mgFiber: 2gSugar: 33gVitamin A: 468IUVitamin C: 2mgCalcium: 77mgIron: 2mg
Keyword blueberry coffee cake
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