Blueberry Coffee Cake

Blueberry Coffee Cake is a delicious and easy-to-make breakfast recipe. Loaded with fresh blueberries and a buttery streusel topping.

The scent of freshly baked blueberry coffee cake drifting through the kitchen is enough to slow any morning down to something softer and sweeter. Bursting with juicy blueberries and layered with a tender, buttery crumb, this classic treat strikes the perfect balance between comforting and indulgent. Whether paired with a hot cup of coffee or enjoyed on its own, each bite delivers a mix of bright fruitiness and warm, cinnamon-kissed richness.

What makes blueberry coffee cake so irresistible is its simple charm. A moist, delicate cake base cradles pockets of tart berries, while a crumbly streusel topping adds just the right amount of texture and sweetness. It’s the kind of recipe that feels just as at home on a cozy weekend brunch table as it does as an afternoon pick-me-up, inviting you to savor the moment one slice at a time.

Why You’ll Love This Recipe

• Easy to make with simple, everyday ingredients
• Soft, moist cake packed with juicy blueberries
• Buttery streusel topping adds the perfect crunch
• Perfect for breakfast, brunch, or dessert
• Comes together quickly with minimal effort
• A cozy, crowd-pleasing treat everyone enjoys

Ingredient Notes

Topping

• Rolled oats: Adds a hearty texture and rustic crumb to the streusel
• All-purpose flour: Helps bind the topping for that classic crumble
• Granulated sugar (or SPLENDA® Naturals Stevia Sweetener): Sweetens the topping to balance the tart berries
• Butter (room temperature): Creates a rich, buttery crumble texture
• Chopped walnuts (optional): Adds crunch and a nutty depth of flavor

Berries

• Fresh blueberries: Provide juicy bursts of sweetness and slight tartness
• All-purpose flour (for dusting): Keeps blueberries from sinking to the bottom of the cake

Cake

• All-purpose flour: Forms the base structure of the cake
• Cornmeal: Adds a subtle texture and a hint of rustic flavor
• Baking soda & baking powder: Work together for a light, fluffy rise
• Salt: Enhances overall flavor and balances sweetness
• Granulated sugar (or SPLENDA® Naturals Stevia Sweetener): Sweetens the cake while keeping it tender
• Butter (room temperature): Adds richness and moisture
• Vanilla extract: Brings warmth and depth of flavor
• Eggs (room temperature): Provide structure and help create a soft crumb
• Buttermilk: Keeps the cake moist and adds a slight tang that complements the blueberries

Kitchen Equipment

• Mixing bowls (large and medium)
• Measuring cups and spoons
• Hand mixer or stand mixer (optional, but helpful)
• Whisk and rubber spatula
• 8×8 or 9×9-inch baking pan
• Parchment paper (for easy removal)
• Cooling rack

How to Make Blueberry Coffee Cake

Topping
Start by mixing the oats, flour, sweetener of your choice, and butter in a small bowl. Use a fork to blend everything together until it forms coarse, crumbly bits—then just set it aside for later.

Berries
In another small bowl, toss the blueberries with a little flour until they’re nicely coated. This helps keep them from sinking to the bottom while baking.

1. Cake
   Preheat your oven to 350°F and line an 8×8-inch pan with parchment paper, then lightly grease it so nothing sticks.
2. In a mixing bowl, beat the butter and sugar (or sweetener) together until it looks light and fluffy. Add in the vanilla and eggs and mix until everything is well combined.
3. Now slowly mix in the dry ingredients—flour, cornmeal, baking soda, baking powder, and salt—along with the buttermilk. Beat until the batter is smooth and fully blended.
4. Spread half of the batter into your prepared pan, then sprinkle on some of the topping and a handful of blueberries. Take the remaining blueberries, fold them into the rest of the batter, and pour that over the first layer.
5. Finish it off with the rest of the topping sprinkled evenly over the top, and add walnuts if you’re using them.
6. Bake for 55–65 minutes, or until a toothpick inserted in the center comes out clean.

Variations & Substitutions

• Different berries: Swap blueberries for raspberries, blackberries, or a mixed berry blend for a fun twist.
• Frozen berries: You can use frozen blueberries—just don’t thaw them first to avoid excess moisture.
• Nut-free option: Simply leave out the walnuts, or replace them with pumpkin or sunflower seeds for crunch.
• Dairy-free version: Use plant-based butter and a dairy-free milk + lemon juice substitute for buttermilk.
• Sweetener swap: Granulated sugar can be replaced with SPLENDA® Naturals Stevia Sweetener for a lower-sugar option.
• Gluten-free option: Use a 1:1 gluten-free flour blend in place of all-purpose flour.
• Extra flavor: Add a pinch of cinnamon or lemon zest to the batter for a bright, cozy boost.

Storage

• Store leftover coffee cake in an airtight container at room temperature for up to 2–3 days.
• For longer freshness, keep it in the refrigerator for up to 5–6 days. Just bring it to room temperature or warm slightly before serving.
• To freeze, wrap individual slices or the whole cake tightly in plastic wrap and place in a freezer-safe bag or container. Freeze for up to 2–3 months. Thaw overnight in the fridge or at room temperature, and enjoy as is or warmed up for that fresh-baked feel.

Expert Tips

Make sure your butter, eggs, and buttermilk are at room temperature for a smoother, better-emulsified batter.

Don’t overmix once you add the dry ingredients—mix just until combined to keep the cake tender.

Tossing the blueberries in flour is key—it helps prevent them from sinking to the bottom while baking.

For an extra-moist cake, avoid overbaking; start checking a few minutes before the timer goes off.

Let the cake cool before slicing so it sets properly and doesn’t fall apart.

If you love a thicker crumb topping, gently press it into the batter before baking, so it stays put.

FAQ’s

Can I use frozen blueberries instead of fresh?

Yes! Frozen blueberries work well—just add them straight from the freezer without thawing to prevent excess moisture in the batter.

Why do I need to coat the blueberries in flour?

Tossing blueberries in flour helps keep them evenly distributed throughout the cake instead of sinking to the bottom.

Can I make this coffee cake ahead of time?

Absolutely. You can bake it a day in advance and store it covered at room temperature or in the fridge. It actually tastes even better the next day!

How do I know when the cake is done baking?

Insert a toothpick into the center—if it comes out clean or with just a few crumbs, it’s ready.

Do I have to use cornmeal in the batter?

No, but it adds a subtle texture and rustic flavor. You can replace it with more flour if preferred.

If you love this coffee cake recipe, you’re going to love these other coffee cake recipes, too. Please click each link below to find the easy, printable recipe!

Looking for more blueberry recipes?

Blueberry Baked French Toast

Blueberry Granola Cereal

Lemon Poppy Seed Donuts w/ Lemon Blueberry Glaze

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