Blueberry Buttermilk Breakfast Cake is a soft, tender cake filled with juicy blueberries and a light buttery crumb. The buttermilk keeps the cake moist while giving it just enough tang to balance the sweet berries and sugar.
This is the kind of cake that works just as well for a weekend breakfast as it does for brunch or an afternoon coffee break. It isn’t overly rich or heavily frosted—just a simple homemade cake with plenty of fruit throughout.
Buttermilk gives this cake an especially soft, tender crumb without making it heavy. Its slight tang also works beautifully with sweet blueberries.
There are plenty of berries throughout rather than just a few scattered over the surface, so almost every bite has a burst of blueberry.
It’s also wonderfully uncomplicated. There’s no frosting, filling, or decorating required—a little sugar over the top before baking is enough.
Fresh blueberries are wonderful here, but frozen berries can work too. The important thing is folding them into the batter gently so they stay mostly intact instead of turning the entire cake purple.
I especially like the slightly crisp sugary surface against the soft center. Serve it warm or at room temperature, and don’t be surprised if people come back for another square.
Ingredients You’ll Need
You’ll need basic baking ingredients and plenty of blueberries:
- All-purpose flour
- Fresh blueberries
- Buttermilk
- Unsalted butter
- Granulated sugar
- Egg
- Vanilla extract
- Baking powder
- Salt
How To Make Blueberry Buttermilk Breakfast Cake
Step 1: Preheat the oven to 350°F. Lightly grease an 8-inch square baking dish and line it with parchment paper if you’d like easier removal.
Step 2: Add the softened butter and granulated sugar to a large bowl. Beat until smooth, creamy, and slightly fluffy.
Step 3: Add the egg and vanilla extract and beat until completely incorporated.
Step 4: In a separate bowl, whisk together the flour, baking powder, and salt.
Step 5: Add the dry ingredients to the butter mixture in portions, alternating with the buttermilk. Mix gently just until the batter comes together.
Step 6: Toss the blueberries with a small spoonful of flour, then gently fold them into the batter. Avoid vigorous mixing so the berries stay intact.
Step 7: Spread the thick batter evenly into the prepared baking dish. Sprinkle a little granulated sugar evenly over the surface.
Step 8: Bake for 35–45 minutes, until the top is lightly golden and a toothpick inserted into a cakey area near the center comes out without wet batter.
Step 9: Let the breakfast cake cool for at least 15 minutes before cutting into squares and serving.
Blueberry Buttermilk Breakfast Cake Variations
Lemon Blueberry Breakfast Cake
Add finely grated lemon zest to the batter for a bright citrus flavor that pairs beautifully with blueberries.
Blueberry Almond Cake
Add a little almond extract alongside the vanilla for a subtle nutty flavor.
Mixed Berry Breakfast Cake
Use a combination of blueberries and raspberries for a slightly more tart berry flavor.
Blueberry Pecan Cake
Fold chopped pecans into the batter for a little crunch.
Extra-Blueberry Cake
Scatter an additional small handful of blueberries over the surface just before baking.
Storing Blueberry Buttermilk Breakfast Cake
Once completely cool, keep the cake tightly covered at room temperature for about 1–2 days or refrigerate it for up to 4 days.
Can I Use Frozen Blueberries?
Yes. Add them directly from the freezer rather than thawing them first. Thawed blueberries release more juice and can discolor the batter.
Why Toss The Blueberries With Flour?
A light coating of flour can help keep the berries distributed throughout the batter rather than having all of them sink toward the bottom.
What Does Buttermilk Do In The Cake?
Buttermilk adds moisture and a slight tang while helping create a tender crumb.
Can I Make This Cake Ahead?
Absolutely. It can be baked the day before and kept tightly covered once completely cool.
Why Is My Cake Dense?
The batter may have been overmixed after the flour was added. Mix only until everything is combined, then gently fold in the blueberries.
Can I Use A Different Berry?
Yes. Raspberries or chopped strawberries can work, although their moisture levels may change the baking time slightly.
For longer storage, wrap individual squares and freeze them in an airtight container. Thaw at room temperature or warm briefly before serving.
What To Serve With Blueberry Buttermilk Breakfast Cake
- Hot coffee: The slightly bitter coffee pairs beautifully with the sweet berries and buttery cake.
- Fresh blueberries: Serve a handful alongside each square for even more fresh berry flavor.
- Greek yogurt: A spoonful of plain or vanilla yogurt makes this especially nice for breakfast or brunch.
- Fresh fruit: Strawberries, raspberries, peaches, or melon add something light and fresh to the plate.
- Whipped cream: A small spoonful turns the breakfast cake into an easy dessert.
- Tea: Black or lightly flavored tea works nicely with the simple blueberry and vanilla flavors.
Don’t overmix the batter once the flour goes in. A gentle hand is one of the easiest ways to keep Blueberry Buttermilk Breakfast Cake soft and tender.
And if you’re using frozen blueberries, keep them frozen until the moment you fold them into the batter. That helps prevent their juices from streaking through the entire cake.
Blueberry Buttermilk Breakfast Cake
Ingredients
- 2 cups all-purpose flour plus 1 tablespoon for the blueberries
- 2 cups fresh blueberries
- ½ cup unsalted butter softened
- ¾ cup granulated sugar plus 1 tablespoon for topping
- 1 large egg
- 1 teaspoon vanilla extract
- ½ cup buttermilk
- 2 teaspoons baking powder
- ½ teaspoon salt
Instructions
- Preheat the oven to 350°F and lightly grease an 8-inch square baking dish.
- Beat the softened butter and ¾ cup sugar until creamy and slightly fluffy.
- Add the egg and vanilla and mix until combined.
- Whisk together the flour, baking powder, and salt.
- Add the dry ingredients to the butter mixture in portions, alternating with the buttermilk, and mix just until combined.
- Toss the blueberries with 1 tablespoon flour, then gently fold them into the batter.
- Spread the batter evenly in the prepared dish and sprinkle 1 tablespoon sugar over the top.
- Bake for 35–45 minutes, until lightly golden and a toothpick inserted near the center comes out without wet batter.
- Cool for at least 15 minutes before cutting into squares.
Nutrition
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