Classic Blueberry Streusel Coffee Cake

Prepare to fall in love with the most enchanting Blueberry Streusel Coffee Cake you’ll ever bake. Imagine a perfectly moist, tender cake base, generously studded with juicy, plump blueberries that burst with flavor in every bite. Capping this masterpiece is a delightful streusel topping – a sweet, buttery, and crumbly layer that adds an irresistible texture and a hint of cinnamon spice. This isn’t just a cake; it’s a comforting experience, ideal for brightening your morning coffee, elevating your brunch, or serving as a sweet finale to any meal. Its aroma alone is enough to draw everyone to the kitchen!

A slice of delicious Blueberry Streusel Coffee Cake on a white platter with a cup of coffee and fresh blueberries.
A mouth-watering slice of Blueberry Streusel Coffee Cake, ready to be enjoyed with a hot cup of coffee.

Once you try this recipe, you might find it hard to resist. Its homemade charm and incredible flavor are genuinely addictive. We often find ourselves debating who gets the last slice!

Why This Blueberry Streusel Coffee Cake is a Must-Try

There’s a reason this Blueberry Streusel Coffee Cake becomes an instant favorite wherever it’s served. It perfectly balances a fluffy, tender cake with the bright tang of fresh blueberries and the sweet, crunchy texture of its signature streusel. This cake isn’t overly sweet, allowing the natural flavors of the blueberries and the warmth of cinnamon to shine through. It’s designed to be simple enough for any home baker to master, yet it delivers a gourmet experience that feels incredibly special.

Whether you’re looking for a delightful treat to share with guests, a comforting bake for a lazy Sunday morning, or simply a way to utilize an abundance of fresh blueberries, this recipe is your answer. It’s also incredibly versatile – delicious warm from the oven, at room temperature, or even slightly warmed the next day. The magic of this coffee cake lies in its ability to bring joy and warmth, making every moment feel a little more extraordinary.

The Star Ingredient: Fresh Blueberries

Blueberries are not just pretty little berries; they are flavor powerhouses that truly make this coffee cake sing. Their natural sweetness with a hint of tartness perfectly complements the rich cake batter and crumbly streusel. For the best results, fresh blueberries are highly recommended. They hold their shape beautifully during baking and burst with juice, creating delightful pockets of flavor throughout the cake. If fresh blueberries are not in season or available, you can certainly use frozen ones. Just remember not to thaw them before tossing them in flour, as this prevents them from sinking to the bottom of the cake and helps maintain the cake’s vibrant purple swirls.

Crafting the Perfect Streusel Topping

The streusel topping is what truly elevates this coffee cake from good to unforgettable. This crumbly, buttery mixture of flour, brown sugar, cinnamon, and melted butter creates a golden, slightly crisp layer that provides a wonderful contrast to the soft cake below. The brown sugar adds a deep, caramel-like sweetness, while the cinnamon infuses a warm, inviting spice. The key to a perfect streusel is to mix it just enough until crumbs form, but not so much that it becomes a paste. You want distinct pieces that will bake into crunchy, golden nuggets on top of your cake. This delightful texture not only enhances the eating experience but also adds to the cake’s visual appeal, making it look as good as it tastes.

Close-up of the streusel topping mixture in a bowl.
The crumbly streusel topping, ready to adorn your coffee cake.

Essential Ingredients for Success

Achieving the perfect texture and flavor for this coffee cake starts with quality ingredients and understanding their roles:

  • Unsalted Butter (Room Temperature): Crucial for a light and fluffy cake batter. Room temperature butter creams beautifully with sugar, incorporating air for a tender crumb.
  • Granulated Sugar & Packed Brown Sugar: Granulated sugar provides sweetness and moisture in the cake, while brown sugar in the streusel adds depth of flavor and that signature chewy texture.
  • Large Egg (Room Temperature): Helps bind the ingredients, adds moisture, and contributes to the cake’s structure. Room temperature eggs emulsify better with the butter and sugar.
  • Vanilla Extract: A classic flavor enhancer that complements both the blueberries and the cinnamon in the streusel.
  • All-Purpose Flour: The foundation of both the cake and the streusel. Measuring flour correctly (spoon and level method) is key to avoiding a dense cake.
  • Baking Powder: The primary leavening agent, ensuring the cake rises beautifully and achieves a soft, airy texture.
  • Kosher Salt: Balances the sweetness and enhances all the flavors in the cake.
  • Fresh Blueberries: As discussed, these are the stars! Toss them in a little flour to prevent them from sinking to the bottom.
  • Buttermilk (Room Temperature): Adds a delightful tang and helps create a wonderfully moist and tender crumb. If you don’t have buttermilk, you can easily make a substitute: add 1 tablespoon of white vinegar or lemon juice to a measuring cup, then fill it to the 1/2 cup line with whole milk. Let it sit for 5-10 minutes until it slightly curdles.
  • Cinnamon: Essential for the streusel, providing a warm, inviting spice that pairs perfectly with blueberries.

Step-by-Step Guide to Perfection

Follow these detailed steps to create a show-stopping Blueberry Streusel Coffee Cake:

  1. Preparation is Key: Begin by preheating your oven to 350°F (175°C). Next, prepare a 9-inch round springform pan. Lightly grease it with non-stick spray and, if desired, line the bottom with parchment paper for easy removal. Set the prepared pan aside.
  2. Whip Up the Streusel: In a medium bowl, combine 1/2 cup flour, 1/2 cup packed brown sugar, 1/2 teaspoon cinnamon, and 4 tablespoons of melted butter. Using a fork, mix these ingredients until a crumbly mixture forms and all the dry ingredients are moistened. Don’t overmix; you want distinct crumbs. Set this delicious topping aside.
  3. Cream the Wet Ingredients: In a large mixing bowl, using an electric mixer, cream together 1/2 cup room temperature unsalted butter and 3/4 cup granulated sugar until the mixture is light, fluffy, and pale in color. This step is crucial for incorporating air into the batter.
  4. Add Egg and Vanilla: Beat in the room temperature large egg and 1 teaspoon of vanilla extract until just combined. Scrape down the sides of the bowl to ensure everything is well incorporated.
  5. Prepare Dry Ingredients and Blueberries: In a separate small bowl, toss 2 cups of fresh blueberries with 2 tablespoons of the measured flour. This light coating helps prevent the blueberries from sinking to the bottom of the cake during baking. In another separate bowl, whisk together the remaining 2 cups of flour, 2 teaspoons of baking powder, and 1 teaspoon of kosher salt.
  6. Combine Wet and Dry Alternately: Gradually add the dry flour mixture to the wet butter mixture, alternating with 1/2 cup of room temperature buttermilk. Begin and end with the flour mixture, mixing on low speed until just combined after each addition. Be careful not to overmix the batter; overmixing can lead to a tough cake.
  7. Gently Fold in Blueberries: With a spatula, gently fold in the floured blueberries until they are evenly distributed throughout the batter.
Cake batter with blueberries gently folded in a bowl.
The vibrant blueberry-studded batter, ready for baking.
  1. Assemble and Top: Pour and spread the cake batter evenly into your prepared springform pan. Then, generously sprinkle the streusel topping over the entire surface of the batter.
  2. Bake to Golden Perfection: Bake for 45 to 50 minutes, or until a wooden toothpick inserted into the center of the cake comes out clean. Baking times can vary depending on your oven, so keep an eye on it. The streusel should be golden brown and the cake beautifully risen.
  3. Cool Before Indulging: Allow the cake to cool in the pan for at least 15 minutes before attempting to release the sides of the springform pan. This cooling period helps the cake set and prevents it from breaking. Once cooled for 15 minutes, carefully run a thin knife around the edges of the pan to loosen the cake, then remove the springform sides. Let it continue to cool on a wire rack until it’s warm or at room temperature.
Blueberry Streusel Coffee Cake cooling on a wire rack.
The freshly baked coffee cake, cooling and filling your home with a heavenly scent.

Honestly, waiting for it to cool is the hardest part! The aroma alone is utterly intoxicating. I confess, I sometimes can’t wait the full cooling time, especially when shooting photos for this blog. A warm slice with a freshly brewed cup of coffee is pure bliss!

Expert Tips for a Flawless Coffee Cake

  • Room Temperature Ingredients: This is a golden rule for most baking recipes, especially cakes. Room temperature butter, eggs, and buttermilk emulsify much better, resulting in a smoother batter and a more uniform, tender crumb.
  • Don’t Overmix: Once you add the dry ingredients to the wet, mix only until just combined. Overmixing develops the gluten in the flour, leading to a tough, dry cake.
  • Flour Your Blueberries: Tossing blueberries in a tablespoon or two of flour prevents them from sinking to the bottom of the cake during baking, ensuring even distribution.
  • Use a Springform Pan: While a regular round cake pan can work, a springform pan makes it incredibly easy to release the cake without damaging its delicate structure or the beautiful streusel topping.
  • Test for Doneness: Always rely on the toothpick test (inserted into the center comes out clean) rather than just the timer, as oven temperatures can vary.
  • Cool Properly: Allowing the cake to cool in the pan for the initial 15 minutes helps it set. Then, transferring it to a wire rack for complete cooling prevents sogginess and ensures a firm texture.

Serving and Storage Suggestions

This Blueberry Streusel Coffee Cake is incredibly versatile! It’s perfect on its own for a simple yet satisfying treat. For breakfast or brunch, serve it alongside fresh fruit, yogurt, or a savory egg dish. It’s also an elegant dessert, delightful with a scoop of vanilla bean ice cream or a dollop of freshly whipped cream. And, of course, it’s the quintessential companion to a hot cup of coffee, tea, or even a glass of cold milk.

Full Blueberry Streusel Coffee Cake on a white serving plate.
The entire glorious Blueberry Streusel Coffee Cake, ready to be sliced and served.

To store any leftovers, cover the cake tightly with plastic wrap or place it in an airtight container at room temperature for up to 3 days. For longer storage, you can refrigerate it for up to 5 days, though the streusel might lose some of its crispness. This cake also freezes beautifully! Wrap individual slices or the whole cooled cake tightly in plastic wrap, then again in aluminum foil. It can be frozen for up to 3 months. Thaw at room temperature and warm gently in the oven or microwave if desired.

Frequently Asked Questions (FAQs)

Can I use frozen blueberries instead of fresh?

Yes, absolutely! If using frozen blueberries, do not thaw them. Toss them directly from the freezer with the 2 tablespoons of flour. This helps prevent them from bleeding into the batter and sinking during baking, maintaining the cake’s beautiful appearance and texture.

What if I don’t have buttermilk?

No problem! You can easily make a homemade buttermilk substitute. Pour 1 tablespoon of white vinegar or lemon juice into a liquid measuring cup, then fill it the rest of the way to the 1/2 cup line with regular milk (dairy or non-dairy). Stir gently and let it sit for 5-10 minutes until it slightly curdles. Your homemade buttermilk is ready to use!

Can I make this coffee cake ahead of time?

Yes, this coffee cake is excellent for making ahead. You can bake it a day in advance and store it at room temperature, tightly covered. It tastes just as wonderful, if not better, the next day as the flavors have a chance to meld. You can also prepare the streusel topping a day in advance and store it in an airtight container in the refrigerator.

How do I prevent the streusel from becoming soggy?

To keep your streusel topping crisp, ensure the cake is fully cooled before covering it. Any trapped steam can make the streusel soggy. When storing, try to avoid overly airtight containers if you prefer a crispier topping, or simply rewarm a slice briefly in a toaster oven before serving.

Blueberry Streusel Coffee Cake Recipe

Blueberry Streusel Coffee Cake on a white platter with a coffee cup.

Blueberry Streusel Coffee Cake

A truly delicious and satisfyingly moist coffee cake, generously packed with fresh blueberries and crowned with an irresistible buttery streusel topping. Perfect for any time of day!

Course: Breakfast, Dessert
Cuisine: American
Prep Time: 15 minutes
Cook Time: 50 minutes
Total Time: 1 hour 5 minutes
Servings: 8
Author: Don’t Sweat The Recipe
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Ingredients

Streusel:

  • 1/2 cup all-purpose flour
  • 1/2 cup packed brown sugar
  • 1/2 teaspoon ground cinnamon
  • 4 tablespoons unsalted butter, melted

Coffee Cake:

  • 1/2 cup unsalted butter, room temperature
  • 3/4 cup granulated sugar
  • 1 large egg, room temperature
  • 1 teaspoon vanilla extract
  • 2 cups + 2 tablespoons all-purpose flour, divided
  • 2 teaspoons baking powder
  • 1 teaspoon kosher salt
  • 2 cups fresh blueberries (or frozen, not thawed)
  • 1/2 cup buttermilk, room temperature

Instructions

  1. Preheat the oven to 350ºF (175°C).
  2. Prepare a 9-inch round springform pan by coating it with non-stick spray (and parchment paper on the bottom, if desired). Set aside.
  3. To prepare the streusel: In a medium bowl, combine 1/2 cup flour, 1/2 cup packed brown sugar, 1/2 teaspoon cinnamon, and 4 tablespoons melted butter. Mix with a fork until all ingredients are incorporated and crumbly. Set aside.
  4. To make the cake batter: In a large bowl, cream together 1/2 cup room temperature butter and 3/4 cup granulated sugar until light and fluffy.
  5. Add the room temperature egg and vanilla extract, beating until just combined.
  6. In a small separate bowl, toss the 2 cups of blueberries with 2 tablespoons of the all-purpose flour. In another bowl, whisk together the remaining 2 cups of flour, 2 teaspoons baking powder, and 1 teaspoon kosher salt.
  7. Add the dry flour mixture to the wet butter mixture in three additions, alternating with the 1/2 cup of buttermilk. Begin and end with the flour mixture, mixing until just combined after each addition. Do not overmix. Gently fold in the floured blueberries.
  8. Spread the cake batter evenly into the prepared pan. Sprinkle the streusel topping evenly over the top of the batter.
  9. Bake for 45 to 50 minutes, or until a wooden toothpick inserted into the center comes out clean. Baking times may vary.
  10. Allow the cake to cool in the pan for at least 15 minutes. Carefully loosen the edge of the cake from the pan with a thin knife before removing the springform sides. Let it cool further on a wire rack before slicing and serving.

Nutrition

Calories: 575kcal | Carbohydrates: 93g | Protein: 9g | Fat: 19g | Saturated Fat: 11g | Cholesterol: 68mg | Sodium: 373mg | Potassium: 251mg | Fiber: 3g | Sugar: 37g | Vitamin A: 604IU | Vitamin C: 4mg | Calcium: 92mg | Iron: 4mg

Conclusion: A Recipe to Cherish

This Blueberry Streusel Coffee Cake is more than just a recipe; it’s an invitation to create warmth, comfort, and unforgettable flavors in your own kitchen. Its moist crumb, vibrant blueberries, and crunchy streusel topping combine to form a harmony that’s truly irresistible. We hope you find as much joy in baking and sharing this cake as we do. It’s a testament to simple ingredients coming together to form something truly extraordinary. Don’t sweat the recipe, just enjoy the process, and get ready for rave reviews!

Looking for more delightful blueberry treats? You might also enjoy our popular Blueberry Muffins or our highly-rated Blueberry Scones!