Blueberry Crumb Bars, made with fresh or frozen blueberries, with a buttery crumb topping, are a perfect dessert for a summer potluck, picnic, cookout, etc.
With fresh blueberries that I needed to use up, I went searching for a recipe that was delicious but also easy to make and take to a party or potluck. I saw a version of these on Pinterest. However, I adapted my Blueberry Crumb Bars from the recipe on AllRecipes.com and the Blueberry Crumb Bar recipe in the AllRecipes magazine. Like my Strawberry Crumb Bars, my version of these Blueberry Crumb Bars are bursting with flavor!
The original recipe for Blueberry Crumb Bars called for 9×13 baking dish, but with only 2 of us, I scaled it down to half, and made it in an 8×8. However, after trying these, if you have a crowd to feed, you may want to have lots on hand and double my recipe for Blueberry Crumb Bars. They will go fast.
Since some of the reviewers on the original recipe on AllRecipes.com stated that the crust lacked flavor, I made a few changes. First, instead of using all white sugar, I used half white sugar and half light brown sugar. Secondly, I used butter instead of shortening. Lastly, I added a 1/2 teaspoon vanilla to the crust. All these changes gave it great flavor.
To the blueberry filling, I added lemon juice after reading the reviews. After baking, let them cool completely before cutting. I recommend even refrigerating the Blueberry Crumb Bars for an hour or so before cutting. It will make them easier to cut.
The result of all these changes? Absolutely perfect Blueberry Crumb Bars that will be very popular at any get together. This is my go to recipe from now on. Mr. Flavor Mosaic said he definitely wanted me to make these again.
For which occasion will you make these Blueberry Crumb Bars?
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- ¼ cup white sugar
- ¼ cup light brown sugar
- ½ teaspoon baking powder
- 1-1/2 cups all-purpose flour
- ¼ teaspoon salt
- ½ cup butter (1 stick butter)
- 1 egg, beaten
- ½ teaspoon vanilla
- 2 cups fresh blueberries
- ¼ cup white sugar
- 1 teaspoon lemon juice
- 2 teaspoons cornstarch
- Preheat the oven to 375 degrees F. Either grease or spray with baking spray an 8x8 inch pan or place parchment paper on the bottom of the pan.
- In a medium bowl, stir together white and brown sugar, flour, baking powder and salt.
- In a measuring cup or small bowl, beat an egg with a fork. Add the egg and vanilla to the flour mixture. Using a fork or a pastry cutter, cut in the butter into the flour mixture. Work with the dough until the pieces are very small. Dough will be crumbly. Pat half of the dough evenly into the bottom of the prepared pan.
- In another bowl, stir together the sugar, cornstarch, and lemon juice. Stir in the blueberries. Spoon the blueberry mixture evenly over the bottom crust.
- Crumble the remaining dough over the blueberry layer.
- Bake in a preheated oven for 45 minutes, or until top is slightly brown. (My oven runs hot and baked in about 38 minutes.)
- Cool completely before cutting into squares. I recommend refrigerating until ready to serve.
Another blueberry bar recipe you may enjoy are these Cakey Lemon Blueberry Brownies.
For another recipe with lemons and blueberries, my Glazed Lemon Blueberry Pound Cake.
Another bar you may enjoy is my Cherry Cheesecake Brownies.
Here is another recipe to use up those blueberries, Easy Blueberry Muffins.
For another berry treat how about this Easy White Chocolate Berry Dessert from Renee’s Kitchen Adventures.
If you like the Blueberry Crumb Bars, then try these Blueberry Cheesecake bars from The Life and Loves of Grumpy’s Honeybunch.
If you want to use those blueberries for breakfast, try these Lemon Blueberry Pancakes from Life Tastes Good.
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That moment when you reach for blueberry delicioiusness and realize they are in your computer :/ devastating! These look amazing, Michele! Love your pics. I pinned and pinned and pinned everywhere so I can find them when I need them!! So buying blueberries on my next trip to the produce stand!!
Yay! Thanks Marion. These were so good I was eating one for breakfast.
I love that you used brown sugar for part of the sugar. I’m sure that gave it some even more amazing flavors! Blueberries are my favorite (how many times have I said that now? lol)
LOL Shelby! These were so good. If you love blueberries, then you need to make these!
I made cranberry crumb bars back over Christmas break — these blueberry ones are perfect for summertime!
Thanks Colleen! I agree! As a matter of fact I just bought some blueberries to make some more of these.
These bars look really lovely! I love blueberries and this is such a great way to use them. Nice and easy too!
Thanks Nicole!
I’ve made these with your changes from the original recipe and they are incredible. Thanks for the great recipe!
Thanks Renee! I’m so glad you like them!
Your bars look amazing <3 Nettie
Thanks Nettie!
I was in the process of making these when I was interrupted & couldn’t finish until the butter had softened in the crust mixture. I finished them & put them in the fridge overnight. They are delicious! I will be making them again for a church dinner. Thank you for sharing.
These are great! I highly recommend making a double batch. I made them for tailgating and they were perfect!
Tami, I’m so happy you liked them. Thanks for swinging back around to let us know.
I love blueberry and this is such a good presentation. I could eat the whole thing on my own.
This looks absolutely delicious Michelle and would go great with my coffee!
I dont use blueberries in desserts enough. I must change that.
I have tried your recipe for this before and, honestly, it was delicious!! My kids loved it!
Thank you for sharing your recipe at #SmallVictoriesSundayLinkup !
Thanks Brandi! Im so glad you and your kids liked it.
Delicious! Thanks for sharing #bloggersbrag
Thank you! Thanks for a great link party.
Yum! Thanks for sharing #bloggersbrag
omg it looks so delicious!! The blueberry crumb bars 😀 wow berries are great in anything, but those look amazing
Thank you!
Blueberries, yumm 🙂 This looks absolutely delicious! Thank you for sharing and joining our Oh My Heartsie Girl Wordless Wednesday Link Party.. Have a great day, co-host Evija @Fromevijawithlove x
Thank you!
these all look amazing, definitely going to have to try some.. have blueberries in the freezer!
Thanks for posting at the Weekend re-Treat!!!!
Glo
Oh my goodness, let me grab a glass of milk I’ll be right over 🙂 Thank you for sharing at the Thursday Favorite Things blog hop. Watch for your feature on Monday xo
I totally should have eaten breakfast before I visited your blog LOL Amazing! Thanks so much for taking the time to link up with us over at the #HomeMattersParty – we hope to see you again on Friday! Feel free to bring a friend 🙂
LOVE blueberries and love crumb bars so I’ll need to make these. Oh and thank you for those other yummy ideas linked up below…. I’m so hungry right now!
I need these in my life! Love bars and blueberry crumb sounds divine!
I can not stress how good these bars are. Out of everything I have made in the past couple months this has been my personal favorite. Thank you so much! Delicious!!
Hi Karen, I’m so happy you liked the recipe! Thank you for taking the time to circle back here to let me know.
Is there an alternative to corn starch?