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These cheery, blackberry crumb bars are a summertime favorite and make a perfect afternoon snack or simple dessert.

Blackberry Crumble Bars
I love crumbles. Maybe it’s the name, it’s so old-fashioned and makes me think of long summer walks along blackberry hedges.
I imagine filling pails with sweet-smelling berries and watching small children with berry-stained mouths and grubby hands.
Later, we’d deliver the blackberries to a grandmother who would magically transform them into pots of jam and pies on the windowsill.
The berries would find themselves in mini berry cheesecakes, or blackberry vanilla cupcakes, or this lemon yogurt cake. And there would always be crumb bars served with tea in the afternoon tea.
These black berry crumble bars are everything I love about berry season in a handheld dessert.
Blackberry Bars
I don’t think I can overstate how quick and easy it is to make these delicious fruit bars.
Making Blackberry Bars is as simple as stirring together the crumble topping and pressing half of it into a baking pan. Top that with sugared berries and then sprinkle with the remaining crust.
They are perfect for a quick handheld dessert that you can carry out into the yard to enjoy the long summer twilight while sitting on the porch swing.
These bars are great dessert to whip up for unexpected guests. Or make them as a snack for a kids’ event, game, or to celebrate after a recital.
You really don’t need an excuse, this is a delicious snack for any reason. You aren’t likely to be bringing any leftovers home.

Berry Bars Recipe
The berry bar ingredients are pantry staples. And if you’re lucky, you can pick your own blackberries from a nearby hedge. If that’s not available, your local grocery store or farmer’s market is sure to have some.
Raspberries or boysenberries would be excellent in this easy summertime recipe as well. Frozen berries can be used. However, they’ll need to be thawed and drained to keep your crumble from getting too soggy.
This is a great recipe for kids to try. They can pick the berries and then come home and make the Crumb Bars.
The kids always think it’s fun to push the topping into the pan with their fingers.
Easy peasy and you’ll have these bars coming out of the oven in no time. Serve with tea or coffee or a big glass of cold milk. Blackberry bars are perfect for picnics and late afternoon snacks.

Easy Tip for Cutting in the Butter
You can grate the cold butter straight into the flour! Use butter straight from the refrigerator, don’t let it warm on the counter while you set up the grater.
It takes only 15-20 seconds to grate a cold stick of butter. Toss the fluffy grated butter into flour to lightly coat it and then all you need is a fork or your fingers to turn it into perfect crumbs in moments.

Blackberry Bars Recipe
- Preheat oven to 375 F. Grease a 9 x 13 inch baking pan. Stir together the flour, 1 cup white sugar, baking powder, and salt. Cut in the butter, until the butter is in pea-sized pieces. (See note below for an easy tip!)
- Stir in the beaten egg with a fork. Press half of the dough into the bottom of the baking dish. Combine the blackberries, lemon juice, cornstarch, and sugar in a medium-size mixing bowl and stir to combine.
- Scatter the sugared berries over the crust in the pan. Sprinkle with the other half of the dough mixture.
- Bake at 375 F for 30-35 minutes, or until lightly browned. Let cool completely.

Blackberry Crumble Bars
Ingredients
Crust and Topping Ingredients
- 3 cups all-purpose flour
- 1 cup butter, cut into pieces
- 1 cup granulated white sugar
- 1/2 teaspoon salt
- 1 teaspoon baking powder
- 1 large egg
Blackberry Filling Ingredients
- 4 cups blackberries
- 1 tablespoon fresh lemon juice
- 1 tablespoon cornstarch
- 3/4 cup granulated white sugar
Instructions
- Preheat oven to 375 F. Grease a 9 x 13 inch baking pan. Stir together the flour, 1 cup white sugar, baking powder, and salt. Cut in the butter, until the butter is in pea-sized pieces. (See note below for an easy tip!)
- Stir in the beaten egg with a fork. Press half of the dough into the bottom of the baking dish. Combine the blackberries, lemon juice, cornstarch, and sugar in a medium-size mixing bowl and stir to combine.
- Scatter the sugared berries over the crust in the pan. Sprinkle with the other half of the dough mixture.
- Bake at 375 F for 30-35 minutes, or until lightly browned. Let cool completely.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
{originally published 6/3/16 – recipe notes and photos updated 1/22/21}
Here are a few more blackberry recipes to try:
Blackberry Lime Cupcakes from a Cookie Named Desire
Blackberry Cheesecake Brownies from Oh, Sweet Basil
No Churn Vanilla Blackberry Swirl Ice Cream from Celebrating Sweets


















So good!
Thank you, Kelly.
Can you use different fruit in this recipe?
Any berry will substitute easily.
Who can decipher these measurements? What’s wrong with the metric system ?? Please put a conversion! A cup is -200g, so 800g of blackberry’s? Really?
Feel free to convert the measurements as you see fit.
exactly what I was looking for, turned out fabulous. I was initially a little worried when reading that it didn’t have enough liquid to hold shape for the crust but no issues executing as written.
Loved these, really easy to make, I picked way too many blackberries so hopefully freezing half to make another batch, also freezing excess blackberry slices and hoping they will be good to eat after
I’m so glad that you enjoyed them!
I made your blackberry bars and they are yummy!!
I’ve added this to my “family favorite recipes” list.
Really yummy.
Your blackberry bars look great! I just found two bags of blackberries in the freezer. I’m going to make these tomorrow! Yum!! ♥️
That means to cut the blackberries in half. You’ll put them all in the the pan at the same time.
Please proofread this recipe. In the introduction with the list of ingredients, it states 3 large eggs beaten. Then in the instructions for making it you list one large egg beaten. I used your instructions with the one egg and now I’m hoping it turns out since it’s currently in the oven. I don’t usually get blackberries because I’m the only one that likes them and they’re pricey but I happen to get these on sale for .99 cents for 6oz. Do I use 1 egg or 3 eggs if I choose to use your recipe again. Thanks
1 egg. I’m not seeing any reference to 3 in the post or recipe.
These are wonderful. My daughter in law wanted to make these as favors for their wedding. They got married at a blackberry farm. Everyone loved them. Lorri Yager
I’m so glad you like them, Lorri!