Oh wow, you guys, this Blueberry Streusel Coffee Cake is a total treat! I tried it last weekend, and oh my goodness — it was love at first bite. I just have to tell you about it.

It’s soft, bursting with juicy blueberries, and has this crumbly, sweet streusel on top. Every bite is kinda cozy and makes me smile. Trust me, it’s like a big warm hug.

I really think you’ll wanna make it too. It’s super simple and makes your whole kitchen smell amazing. I mean, who doesn’t wanna wake up to cake?

So come on, let’s bake it together! Grab your blueberries, and let’s whip up something yummy. You’re gonna be so happy you did!

Why You’ll Love This Blueberry Streusel Coffee Cake Recipe

Reader Favorite: The combination of juicy blueberries, soft cake, and crumbly streusel topping makes this coffee cake a beloved recipe. It’s the perfect treat for anyone with a sweet tooth, without being overly sugary.
Easy to Make: This recipe is simple and requires only a few ingredients you likely already have on hand. The step-by-step instructions make it a foolproof dessert.
Versatile: Serve it at breakfast, brunch, or as a mid-day snack. The cake pairs beautifully with a hot cup of coffee or a refreshing glass of iced tea.
Make-Ahead Friendly: You can prepare it ahead of time and store it for later, making it a great option for busy mornings or gatherings.
Perfectly Balanced: The blend of tart blueberries, buttery cake, and cinnamon-sugar streusel topping offers a satisfying balance of flavors and textures.

Required Kitchen Tools

Here’s what you’ll need to make this delicious coffee cake:

Mixing Bowls: For the streusel, batter, and glaze.
Electric Mixer (or Whisk): For mixing the batter to perfection.
9-inch Cake Pan: To bake the coffee cake.
Spatula: For folding in the blueberries and spreading the batter evenly.
Measuring Cups and Spoons: For accurate ingredient measurements.
Cooling Rack: To let the cake cool evenly before serving.

Ingredients

Here’s the breakdown of all the ingredients needed for this moist, flavorful cake. You’ll find the full measurements in the recipe card below:

Streusel:

All-Purpose Flour (65g/½ cup): Provides the structure for the streusel.
Packed Brown Sugar (112g/½ cup): Adds sweetness and a slight molasses flavor to the topping.
Ground Cinnamon (¾ tsp): Infuses the streusel with a warm, spiced aroma.
Unsalted Butter, Melted (56g/¼ cup): Ensures the streusel is moist and crumbly.
Pinch of Salt: Balances out the sweetness and enhances the flavors.

Coffee Cake:

All-Purpose Flour (130g/1 cup): The base of the cake.
Baking Powder (1 ¼ tsp): Helps the cake rise and become light and fluffy.
Salt (¼ tsp): Enhances flavor and prevents the cake from tasting flat.
Sugar (104g/½ cup): Adds sweetness to the cake.
Unsalted Butter, Room Temperature (84g/6 tbsp): Provides moisture and flavor to the cake.
Sour Cream (58g/¼ cup): Gives the cake a rich, tender texture.
Milk (60ml/¼ cup): Helps achieve the right consistency for the batter.
Large Egg (1): Adds structure and richness.
Vanilla Extract (1 tsp): A must-have to enhance the cake’s flavor.
Blueberries (1 ¼ cups): Fresh or frozen blueberries add juiciness and bursts of tart flavor.

Glaze:

Powdered Sugar (86g/¾ cup): Adds sweetness to the glaze.
Milk (15-30ml/1-2 tbsp): Thin the glaze to a pourable consistency.
Vanilla Extract (¼ tsp): Adds flavor to the glaze, tying everything together.

Variations for Blueberry Streusel Coffee Cake

Add Nuts: Walnuts, pecans, or almonds would be a great addition to the streusel topping for an extra crunch.
Use Different Berries: Swap blueberries for raspberries, blackberries, or even strawberries for a different fruity twist.
Citrus Zest: Add lemon or orange zest to the batter for a fresh, citrusy flavor that pairs wonderfully with the blueberries.
Dairy-Free Option: Swap the butter for vegan butter and use almond or oat milk for a dairy-free version.
More Cinnamon: For a spicier kick, increase the amount of cinnamon in the streusel and the batter.

Step-by-Step Instructions for Blueberry Streusel Coffee Cake

Making this Blueberry Streusel Coffee Cake is a simple process that takes less than an hour to prep and bake. Follow these easy steps to create your new favorite treat.

1. Prepare the Streusel

In a small mixing bowl, combine the flour, brown sugar, ground cinnamon, and a pinch of salt. Stir until everything is well mixed. Then, drizzle in the melted butter and use a fork or your hands to mix until the streusel becomes crumbly. Set aside.

2. Make the Coffee Cake Batter

In a separate large mixing bowl, cream together the room-temperature butter and sugar using an electric mixer (or whisk) until light and fluffy. This usually takes about 2-3 minutes.

Add in the egg and vanilla extract and continue mixing until fully combined. Then, add the sour cream and milk, mixing until smooth.

In a separate bowl, whisk together the all-purpose flour, baking powder, and salt. Gradually add the dry ingredients to the wet mixture, mixing just until incorporated. Be careful not to overmix.

Gently fold in the blueberries using a spatula. This will help distribute the fruit evenly without smashing the berries.

3. Assemble the Coffee Cake

Preheat your oven to 350°F (175°C). Grease a 9-inch round cake pan or line it with parchment paper for easy removal. Spoon the batter into the prepared pan and spread it out evenly.

Sprinkle the streusel topping generously over the cake batter. Don’t worry if it looks a little uneven— the streusel will create a delicious, crumbly top as it bakes.

4. Bake the Coffee Cake

Place the cake in the preheated oven and bake for 40-45 minutes, or until a toothpick inserted into the center of the cake comes out clean (or with just a few moist crumbs). The streusel should be golden brown and slightly crisp.

Once baked, remove the cake from the oven and allow it to cool in the pan for about 10 minutes. Then, transfer it to a wire rack to cool completely.

5. Prepare the Glaze

While the cake is cooling, prepare the glaze by whisking together powdered sugar, milk, and vanilla extract in a small bowl. Start with 1 tablespoon of milk and add more if you want a thinner glaze. Drizzle the glaze over the cooled coffee cake just before serving for a sweet finish.

How to Serve Blueberry Streusel Coffee Cake

This coffee cake is perfect for serving at breakfast or brunch gatherings. But it’s also a fantastic dessert to have on hand for whenever you want a sweet treat.

Here are some serving ideas:

With Coffee or Tea: Pair this cake with a hot cup of coffee or a pot of your favorite tea. The sweetness of the cake complements both beverages beautifully.
For Breakfast: Serve it warm with a dollop of whipped cream or a side of Greek yogurt for extra protein.
With Ice Cream: For a decadent dessert, top slices with vanilla ice cream or whipped cream.
For Brunch: Offer it alongside other brunch favorites like scrambled eggs, bacon, or a fruit salad.

Storing Blueberry Streusel Coffee Cake

If you have leftovers (though I doubt you will!), here’s how to store them:

Room Temperature: Store the coffee cake in an airtight container at room temperature for up to 2 days. This will keep the cake moist and fresh.
Refrigeration: For longer storage, you can refrigerate the coffee cake for up to 5 days. Make sure it’s in an airtight container to prevent it from drying out.
Freezing: To freeze, wrap the cake tightly in plastic wrap or foil, then place it in a freezer-safe bag or container. The cake will stay good for up to 3 months. Thaw in the fridge or at room temperature before serving.

Nutrition Information (Per Slice)

Here’s an estimated nutritional breakdown for one slice (assuming 8 slices per cake):

Nutrient	Amount per Serving
Calories	350
Total Fat	16g
Saturated Fat	10g
Cholesterol	45mg
Sodium	150mg
Total Carbohydrates	50g
Dietary Fiber	1g
Sugars	35g
Protein	3g

Note: These values are estimates and may vary based on ingredient substitutions and portion sizes.