triple berry crumb bars


With a blend of mixed berries and a buttery golden lid, these triple berry crumb bars taste like the best berry pie. The bars are delicious unadorned to fully savor the jammy berry filling and golden crumb topping; I also love them topped with a scoop of vanilla bean ice cream or drizzled with lemon butter glaze.

Triple Berry Crumb Bars

The Best Berry Crumb Bars

Even better than pie, these crumb bars are forgiving and flexible – use any blend of fresh berries you love (my favorite combination is a mix of blackberries, raspberries, and blueberries).

If you’re serving a crowd, simply double the recipe and bake in a 13 x 9-inch baking pan (and then prepare to dig in!).

Triple Berry Crumb Bars

How to make berry crumb bars

  • The crust and crumbs are one simple dough that comes together in under 5 minutes (thank you, melted butter!).
  • Reserve 3/4 cup of the dough for the crumb topping (keep chilled), and press the remaining dough evenly and firmly into the prepared baking pan.
  • Bake the crust until golden, then let cool slightly before adding the filling and reserved crumbs.
  • Continue baking until the topping is golden and the berry filling is slightly bubbly, another 40 to 45 minutes. Let bars cool completely before slicing and serving.

Triple Berry Crumb Bars

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Triple Berry Crumb Bars

Triple Berry Crumb Bars

  • Author: Laura | Tutti Dolci
  • Prep Time: 20 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour 15 minutes
  • Yield: 12 to 16 bars


Triple berry crumb bars with a golden crumb topping make the perfect summer dessert! These simple and delicious berry crumb bars taste like the best pie!


Crust & Crumbs

  • 3/4 cup unsalted butter, melted
  • 1/2 cup sugar
  • 1/4 cup light brown sugar
  • 2 tsp vanilla extract
  • 1 tsp lemon zest
  • 2 cups flour
  • 1/4 tsp baking soda
  • 1/4 tsp salt


  • 3/4 cup sugar
  • 1/8 tsp salt
  • 2 Tbsp arrowroot starch (or 1 1/2 Tbsp cornstarch)
  • 1/2 cup blackberries, halved
  • 3/4 cup raspberries
  • 3/4 cup blueberries
  • 1/2 Tbsp fresh lemon juice


  1. Preheat oven to 350°F and line an 8-inch square baking pan with parchment paper. Whisk together melted butter, sugar, brown sugar, vanilla, and lemon zest until combined.
  2. Whisk together flour, baking soda, and salt in a medium bowl; add to butter mixture and fold in until incorporated. Reserve 3/4 cup of dough for topping (keep chilled); press remaining dough evenly into bottom of prepared pan. Bake crust for 14 to 16 minutes, until lightly golden and set. Transfer to a wire rack and cool for 15 minutes.
  3. For the filling, combine sugar, salt, and arrowroot starch in a medium bowl. Add berries and lemon juice, tossing gently to combine. Spoon mixture over cooled crust and crumble reserved dough over filling.
  4. Bake for another 40 to 44 minutes, or until topping is golden and filling slightly bubbly. Cool completely in pan on a wire rack. Just before cutting, chill in the freezer for 10 minutes. Carefully lift parchment and place bars on a cutting board; cut into squares with a sharp knife.


Filling: Any blend of 2 cups of berries can be used for the filling.

Keywords: Berry, Berries, Crumb Bars, Blackberry, Raspberry, Blueberry

Triple Berry Crumb Bars

More Summer Crumb Bar Recipes:

Blackberry Pie Bars
Apricot Crumb Bars
Brown Butter Strawberry Crumb Bars

  1. Can you use frozen berries? How long will these stay fresh? And how should they be stored?

    1. Hi Gretchen! Yes you can use frozen berries (toss the frozen berries with the other filling ingredients) and proceed with the recipe. Once the bars are baked and fully cooled, store them in the refrigerator for 2 to 3 days.

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