Raspberry Crumble Bars

These dessert squares with raspberries and oat crumble are sweet, tangy and totally delicious. Raspberries, oats, brown sugar, butter, flour and more

I need to make a confession. I look for any opportunity to make oat crumble. The combination of oats, brown sugar and butter – they all work together to make something sweet, crunchy, and totally delicious.

So, after I picked a bunch of raspberries at Millar Berry Farms, I knew that I was going to make some sort of raspberry crumble. These are quite similar to the way that I make apple crisp, but, the middle is with raspberries instead of apples.

These dessert squares with raspberries and oat crumble are sweet, tangy and totally delicious. Raspberries, oats, brown sugar, butter, flour and more

Mixing the fresh berries with a little flour and sugar turn the middle into something similar to a fruit pie filling.

These crumble bars have a wonderful combination of sweet and tang. Once made, they can be cut and then frozen for a couple months. That is a great way to store them if they do not all get eaten right away. They are that good!

Raspberry Crumble Squares-9

I love raspberries and have made many different recipes featuring these delicious tart berries. Here are some other great raspberry recipes.

Raspberry Crumble Bars

4.93 out of 5
71 reviews
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These dessert squares with raspberries and oat crumble are sweet, tangy and totally delicious. Raspberries, oats, brown sugar, butter, flour and more
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Servings: 24 squares

Ingredients

  • 2 cups flour
  • 2 cups oats
  • cups brown sugar
  • 1 tsp baking powder
  • 1 cup melted butter
  • 2 pints (4 cups) fresh raspberries
  • 1/2 cup white sugar
  • 2 tbsp flour
  • 2 tbsp lemon juice

Instructions

  • Preheat oven to 350F.
  • Mix the flour, oats, brown sugar and baking powder in a bowl. Stir in the melted butter until it forms a wet crumbly consistency.
  • Take about two thirds of the crumble mixture and dump it into an ungreased 13x9 pan.
  • Mix together the raspberries, sugar, flour and lemon juice so the raspberries are well coated.
  • Spread the raspberry mixture evenly across the crumble base.
  • Sprinkle the remaining crumble mixture evenly on top.
  • Place in the oven and bake for 30-40 minutes.
  • Cool on a wire rack and then cut into squares.

Raspberry Crumble Squares-8pin

Categories

These dessert squares with raspberries and oat crumble are sweet, tangy and totally delicious. Raspberries, oats, brown sugar, butter, flour and more

Did you try this recipe?

Leave a comment and let me know how it turned out. Or, take a picture to share on Instagram and tag me @theblackpeppercorn.

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Recipe Rating




84 comments

  • 5 stars
    So yummy! And Simple! Everyone love them!! They do not last a day!

    • Reply
    • Thanks Debbie! So glad everyone enjoyed the raspberry bars! They never last around here either.

  • 5 stars
    These were amazing! We have a couple of GLUTEN FREE people in our house so I used Bob’s Red Mill 1 to 1 GF flour and the bars were perfect! Thank you for this recipe.

    • Reply
    • Thank you so much for sharing your variation for a gluten free option!

  • Hi. I just prepared it. Going to bake it today and serve it tomorrow. I hope it will taste good after staying in refrigerator. My raspberries usually go bad on the vine but this year I m making sure I use them. I will let you know how it comes out.

    • Reply
    • Thanks Adrienne! I hope you enjoyed the raspberry bars!

  • I tried this out but in smaller portions and it was amazing! It was so delicious the raspberry filling was so good and it made the whole thing just pop ☺️

    • Reply
  • Really good ! So buttery.

    • Reply
    • So glad that you enjoyed these raspberry bars. They are one of my favourites.

  • Hi Steve,
    Do you recommend quick oats or old-fashioned? Or does it make a difference?

    • Reply
    • For baking, I generally find that old fashioned or rolled oats are better than quick oats. Hope that helps.

  • Where I’m from we don’t have fresh raspberries, can the frozen ones be used

    • Reply
    • I have tried them and the bars turn out okay, but they can be a little extra runny. I have thawed the berries and drained any excess liquid which did help.

      • Can you store them in the freezer

        • Reply
        • After they are baked, I have stored them in the freezer and the result has been quite good. Still tastes amazing.

  • 5 stars
    Simple and delicious. My family loved them and it was a good way to use up all our fresh raspberries from our garden this year 🙂

    • Reply
  • 5 stars
    We made these for breakfast! Cut the brown sugar down a little and made a half batch. Very good!

    • Reply
  • Granddaughter(who is 6) and I made these.It was a simple recipe and they tasted delicious.

    • Reply
    • So glad that you and your granddaughter enjoyed the pie. Great that you are baking with her!!

  • 5 stars
    OMG these are seriously good! The best dessert I have eaten in a long long time. I didn’t change a thing, other than adding vanilla ice milk (soft serve). That took it to another level… I have beautiful rambling raspberries growing. Thank you for this awesome recipe… 🙂

    • Reply
  • 5 stars
    ABSOLUTELY AMAZING! 😋
    These are so good that you won’t need to freeze the leftovers!

    • Reply
  • 4 stars
    I made this but used “Harvest Crunch” instead of oatmeal. It said to use an ungreased pan. It stuck like glue!!! I would do it again but would definitely grease the pan!

    • Reply
  • Mixed blueberries with my fresh raspberries….sooo good!

    • Reply
  • Sadly, I didn’t have enough raspberries to make a whole recipe so I had to cut it in half, then I used an 8×8 baking dish so I think they were a little thicker than they were supposed to be but OMG, so good. They didn’t make it over an hour, the family devoured them. This is a great recipe and I will definitely make them again only next time I’ll make sure I have enough raspberries for the full recipe.

    • Reply
  • 5 stars
    I don’t even like raspberries but this recipe is amazing!!!!!! I’ve made it over and over.

    • Reply
    • Thanks so much! Glad your enjoyed the recipe!!

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