Blackberry Crumble Bars

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

Blackberry Crumb Bars

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 Crumble Bars

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.

Blackberry Bars

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 Crumble Bars

Blackberry Bars Recipe

  1. 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!)
  2. 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.
  3. Scatter the sugared berries over the crust in the pan. Sprinkle with the other half of the dough mixture.
  4. Bake at 375 F for 30-35 minutes, or until lightly browned. Let cool completely.
Blackberry Bars

Blackberry Crumble Bars

4.78 from 9 votes
These cheery, blackberry bars are a summertime favorite and make a perfect afternoon snack or simple dessert.
Prep Time: 20 mins
Cook Time: 35 mins
Total Time: 55 mins
Course: Dessert
Cuisine: American
Servings: 24 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

To “cut in the butter” means working large chunks of butter into dry ingredients (usually flour) in order to break the butter down into smaller pieces that are each fully coated in those dry ingredients. You can even 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.

Nutrition

Serving: 1bar · Calories: 196kcal · Carbohydrates: 29g · Protein: 2g · Fat: 8g · Saturated Fat: 5g · Polyunsaturated Fat: 3g · Cholesterol: 28mg · Sodium: 129mg · Fiber: 2g · Sugar: 16g
Tried this recipe?Mention @chocolatewithgrace or tag #chocolatewithgrace!

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{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

Monster Cookie Bars - Classic Cookies in easy bar recipe form.

Monster Cookie Bars

Sugar Cookie Bars (1)

Sugar Cookie Bars

Raspberry Ice White Chocolate Ice Cream (Small)

Raspberry White Chocolate Ice Cream

Blackberry Crumble Bars

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  1. Mallory says

    Christine, It’s so hard to watch them struggle even when it’s for their own good. Things a first time mother has to learn and I’m sure there will be many more things that he doesn’t like in life that will be for his own good. Thanks for the tips.

  2. Rheagan says

    Hi There – I stumbled upon this recipe via Pinterest. (I have a mountain of blackberries to get rid of…)

    Can’t wait to try them!

  3. Jordan says

    Hello, I really want to make these bars but I don’t exactly understand the part about the butter…what exactly do I do with it? And when the bars are done do they go in the refrigerator or can they sit out?

    • Mary says

      Cutting in butter means working large chunks of butter into dry ingredients (usually flour) in order to break the butter down into smaller pieces that are each fully coated in those dry ingredients.

  4. Christopher says

    “Cut the blackberries in half”!? ARE YOU INSANE!?

    Ohhhh . You mean” divide” them.

    🙂 Even I don’t like blackberries THAT much.

    • Mary says

      I’m very happy to tell you that there is no need to slice the blackberries in half for this recipe. I did that initially and then learned the error of my ways. Ha. It works perfectly without slicing them!

  5. Arlene says

    5 stars
    Hi there! Can these stay on the counter at room temp or do you recommend storing in the fridge? Thanks so much! The first taste was amazing!

  6. MB says

    4 stars
    I think she did mean to cut the berries literally in half…but not happening in my kitchen…LoL. Since blackberries are so very juicy I decided t cook them a bit with the sugar, lemon juice, and cornstarch to thicken. Then I simply poured it over the base crust and crumbled the remaining dough on top. Perfect…and easy treat! Thanks!!!

  7. Sharon says

    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

  8. Jackie says

    Your blackberry bars look great! I just found two bags of blackberries in the freezer. I’m going to make these tomorrow! Yum!! ♥️

  9. Jackie says

    5 stars
    I made your blackberry bars and they are yummy!!
    I’ve added this to my “family favorite recipes” list.
    Really yummy.

  10. Vicky says

    5 stars
    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

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