February 5, 2020

Blueberry oatmeal crisp bars

Blueberry oatmeal crisp bars on a cutting board.

Blueberry bars made with oatmeal and cinnamon make a delightful and easy dessert. The oatmeal crisp topping also doubles as the crust and frozen blueberries make this a treat to whip up all year round.

Our freezer is still stocked with summer blueberries from our annual blueberry picking day. We love to use them all year round and bring a taste of summer during the winter months.

I have made these bars using our frozen blueberries a couple of times now and they are so good! They are so easy to whip up. You don't even need to thaw the blueberries. 
The hardest part of this dessert is waiting for it to cool before slicing and eating. We love all sorts of fruit crisps and crumbles, and this one is a favorite of my blueberry loving kids.

I have modified the below recipe from this one here. I first made these as a dessert for our twins' half-birthday and they gobbled them up. 

I am going to try them again with other berries like raspberries and blackberries and I think they will be equally delicious. These bars are not overly sweet, so they could even pass for a breakfast if you wanted.

So the next time you need a quick and easy dessert, give these a try. You may even already have everything you need at home. 

Serving plate with a blueberry oatmeal crisp bar.

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Yield: 9 servings

Blueberry Oatmeal Crisp Bars

Blueberry Oatmeal Crisp Bars

Blueberry bars made with oatmeal and cinnamon make a delightful and easy dessert. The oatmeal crisp topping also doubles as the crust and frozen blueberries make this a treat to whip up all year round.


For the crust/topping
  • 1 cup all-purpose flour
  • 3/4 cup rolled (old-fashioned) oats
  • 1/2 cup granulated sugar
  • 1/4 cup lightly packed brown sugar
  • 1/2 teaspoon cinnamon
  • 1/8 teaspoon salt
  • 1 stick (1/2 cup) unsalted butter, melted
For the filling
  • 2 cups frozen blueberries
  • 1/4 cup granulated sugar
  • juice of one lemon
  • 2 teaspoons cornstarch


How to cook Blueberry Oatmeal Crisp Bars

  1. Line an 8x8" baking dish with parchment paper. Preheat the oven to 350 degrees.
  2. In a large bowl, mix together the flour through salt. Stir in the melted butter until combined.
  3. Reserve one cup of the mixture. Press the remaining mixture into the bottom of the baking pan until firm and even.
  4. In a medium bowl stir together the filling ingredients. Spread over the crust.
  5. Sprinkle the remaining flour mixture over the top, squeezing it between your fingers to form clumps.
  6. Bake for about 45-50 minutes, until golden.
  7. Let cool completely before cutting into squares (if you cut it sooner, it will fall apart). You can put it in the fridge to speed up the cooling process.
Created using The Recipes Generator

I hope you give these blueberry oatmeal crisp bars a try! Let me know in the comments below.

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Serving blueberry oatmeal crisp bar.

Check out these other blueberry recipes:


  1. Blueberries are one of my favorite fruits probably. So I'm sure I would love these bars. They look delicious. And I know I would love one for breakfast!

  2. This is the kind of snack I love to carry with me all the time :-) These buttery fruity bars look so good, Amy.

  3. I love this...super easy and super delicious...like the gooey blueberry with the crispy layer of oat crumb. Hope you are having a fantastic week Amy!

  4. This is a must try. I love blueberries and never thought of including them in bars, thanks for the recipe!

  5. Amy, I've been nearly obsessed with blueberry and lemon everything in the last two weeks! These blueberry bars look really tasty, I will have to add them into our rotation!!

  6. Dear Amy, I love the way these bars look like, a welcome burst of color and, of course, I also love everything crisp, especially when there is oatmeal in the recipe. These look like my kind of afternoon/teatime snack. A wonderful recipe!

  7. Blueberries and oatmeal combine SO perfectly. But then, blueberries and almost anything work. :-) Good recipe -- thanks.

  8. I adore blueberries. This sounds like the perfect recipe for me to use up all the blueberries in my freezer. Thanks for sharing :)

  9. Oh I just love bars like this! And it has me dreaming of berry season.

  10. My blueberry loving family will devour these bars! Florida blueberry season is just around the corner!


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