Y’all I keep my blueberry crumble bars on repeat during the spring and summer. They taste better than pie and are easier to make too. I use fresh blueberries. Then I make a simple buttery crumble for the top and bottom of the bars. It’s just too good boos.
This post may contain affiliate links. Read our disclosure policy.
How to Make Blueberry Crumble Bars
- Combine the flour, sugar, baking powder, and salt in a bowl and whisk together.
- Add the cold butter and cut it into the flour using two forks or a pastry cutter.
- Add the egg yolk and cold water and slowly mix it in.
PRO TIP: Don’t worry if the dough seems really crumbly. It should be!
- Press half of the crumble mixture into your prepared pan.
- Stir together the blueberries, lime juice, flour, sugar, cinnamon, and vanilla in a mixing bowl until combined.
- Spread the blueberry filling on top of the bottom crust in the pan.
- Sprinkle the remaining crumble topping over the top of the blueberry filling.
- Bake your blueberry crumble bars until golden brown and set. Remove them from the oven and allow them to cool to room temperature before cutting them into squares and serving.
Want to Save This Recipe, Boo?
I'll email this recipe to you, so you can come back to it later!
If you want to add more berry flavor to your blueberry dessert, add a scoop of blueberry ice cream or strawberry ice cream.
Blueberry Crumble Bars Recipe
Want to Save This Recipe, Boo?
I’ll email this recipe to you, so you can come back to it later!
Ingredients
For the Crumble and Crust:
- 1 ½ cups all-purpose flour
- ½ cup granulated sugar
- ½ teaspoon baking powder
- Pinch salt
- 10 tablespoons unsalted butter cold and cut into cubes
- 1 large egg yolk
- 1 tablespoon cold water
For the Blueberry Filling:
- 2 cups fresh blueberries
- 2 tablespoons lime juice
- 2 tablespoons all-purpose flour
- ½ cup granulated sugar
- ¼ teaspoon ground cinnamon
- 1 teaspoon vanilla extract
Instructions
For the Crumble and Crust:
- Preheat the oven to 375 degrees F. Prepare a 8×8-inch baking pan with the non-stick coating of your choice.
- For the crumble and crust, whisk together flour, sugar, baking powder and salt.
- Next, cut in the cold butter using two forks or a pastry cutter then slowly mix in the egg yolk and cold water. Don’t worry if the dough seems really crumbly. It should be!
- Next take half of the crumble mixture and press into the prepared pan. The rest should be saved for the top of the bars.
For the Blueberry Filling:
- Stir together blueberries, lime juice, flour, sugar, cinnamon and vanilla until combined.
- To assemble, evenly add blueberry filling to top of crust.
- Next sprinkle the remaining crumble over the top of the blueberry filling.
- Bake for 30-38 minutes or until golden brown and set.
- Cool bars to room temperature then cut and serve.
Notes
How to Store
Since these bars contain fruit, I think it’s a good idea to store them in the refrigerator, especially in the hot Summer. Not only does storing them in a cool spot help keep the berries fresh, but it also allows them to keep shape and last longer. Leftover bars will last for up to 3 days in an airtight container in the fridge. Another option is to store these in the freezer to extend their shelf life for up to three months. They will thaw quickly on the counter at room temperature for an hour. They’re great straight from the fridge, but my favorite way to enjoy them is by warming them up in the microwave for a few seconds. Even better, crumble the warm bar over vanilla ice cream for even more amazingness! I love to do this to other bars like my Peach Crumb Bars and Apple Bars.Nutrition
Recipe Tips
- Don’t thaw frozen blueberries if using them. Just roll them in a little flour so it soaks up some of the additional wetness as it bakes in the oven.
- Use cold butter and cold water for the crust! This is what makes your crumble crust light, flaky, and crumbly.
- Blueberry crumb bars are best served warm and even better with a scoop of vanilla ice cream!
- Allow the bars to cool to room temperature before cutting them. This allows them to set so they don’t fall apart when cut.
Recipe Help
Sure you can use sliced strawberries, blackberries, raspberries or even a mixture!
Yep! Use a 9 x 13 baking pan instead of the square to make them all in one pan.
More Blueberry Dessert Recipes
- Blueberry No Churn Ice Cream
- Blueberry Hand Pies
- Blueberry Lemon Cake
- Blueberry Crunch Cake
- Berry Icebox Cake
*Did you make this recipe? Please give it a star rating and leave comments below!* Post a photo of how your version of the recipe came out on Instagram (using #grandbabycakes)!!
This post was originally published in April 2015. It has been updated with new content and images.
pinterest 
facebook 
twitter 
email
Love this recipe, so easy and delicious!
These blueberry bars are fantastic! The recipe is easy to make and the bars are so flavorful. I can’t wait to try these with other kinds of fruit. I’m thinking peaches next
Made these today. Oh my goodness, they are delicious!
This was absolutely amazing! I followed the recipe exactly and it came out perfect! No changes! I used fresh blueberries and I also made the peach crumble bars with frozen peaches (couldnt find the fresh) and it was also perfect. Very quick and satisfying. Thanks sooo much for an excellent recipe!
As always, Jocelyn’s recipes do not disappoint! I made these with my two small kiddos after going berry picking. The local farm here in CA only had Ollaliberries so we used those and the bars are do die for. So buttery and sweet with the hint of citrus that makes them perfect. I’ve tried not to eat the entire pan myself!
Fantastic recipe! they turned out incredible , I made this 2 days ago with some fresh Blueberries , super good !
Oh my goodness, these are IN-CR-EDIBLE!! The shortbread crust is amazingly good and honestly, this doesn’t need ice cream or whipped cream like I thought it would, it stands on it’s very own. I made one blueberry and the other blueberry/blackberry/strawberry. Next time if I mix berries, I’d do blueberry/strawberry (little blackberry seeds were annoying). 🙂 Thanks so much for sharing this recipe!
These are delicious! I will definitely be making them again!
Yum! Can you make these with frozen blueberries?
Yes you can!
The recipe was easy to follow and even though I have never made successful pie crust these bars turned out with the perfect combination of doughy and crumbly. I had no trouble using frozen blueberries but would love to try with fresh next time. I will definitely be adding these bars to the goodie rotation… so yummy!