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The easiest Triple Berry Crisp made with frozen raspberries, blueberries and blackberries for a juicy berry filling nestled under a crispy oat topping.

So it turns out that ya'll love fruit crisps just as much as I do! Some of my most popular dessert recipes are my BEST EVER Apple Crisp and my Peach Crisp, so I knew it was definitely time to share this delicious Berry Crisp with you all!

A bowl of berry crisp with a scoop of vanilla ice cream on top.

What I LOVE about this Berry Crisp:

  • Frozen berries. For the filling, I use these big beautiful frozen berries from Costco's 3-berry pack in the frozen section.  They are much cheaper than fresh berries and every bit as delicious.  It also makes this recipe extra easy as it has the same flavors I love from my Triple Berry Pie, but it's much easier to make.
  • Filling holds together.  I've thickened the filling slightly so that it holds together and isn't a runny mess when you're serving it.
  • That OAT crumble topping.  The crumble on top is made with basic pantry ingredients (flour, sugar, oats, cinnamon, salt, and butter) and it bakes up all beautiful, golden and crisp.

Fresh or Frozen Berries:

You can use either fresh or frozen berries for this recipe, however, I'd actually recommend frozen berries.  Large, good quality frozen berries.  Frozen berries are cheaper and preserve nutrients in the berries at the time of freezing.  I'd save those fresh berries for enjoying with some homemade granola or pancakes because you'll never notice the difference in this berry crisp.

How to Make Berry Crisp:

1. Make crumble topping: Combining the oats, flour, sugar, brown sugar, cinnamon and salt. Pour in the melted butter and stir to incorporate. Set aside.

Two process photos for making crumble oat topping for berry crisp.

2. Make berry filling. Combine frozen berries, flour, sugar, salt, lemon juice and vanilla extract.

3. Pour into dish. Then “glob” the topping ingredients evenly over the top (I say “glob” because the mixture will be softer than your normal dry crumble topping, because of the melted butter).

Two process photos for making berry crisp by mixing the berry filling and adding to a pan with crumble topping.

4. Bake for 40-45 minutes until the topping is golden brown and berries are bubbling around the edges.

5. Cool.  Remove from the oven, place on a wire rack, and allow to cool for at least 7-10 minutes before serving. Serve with a scoop of vanilla ice cream, if desired.  Cover leftovers and store in the refrigerator for up to 5 days.

Berry crisp with crumble topping baked in a white dish.

MAKE AHEAD AND FREEZING INSTRUCTIONS:

To make ahead: Bake and cool the crisp completely, then cover it with a double layer of aluminum foil. I don't suggest preparing the crisp and storing it, unbaked, in the fridge because the topping will get soggy.

To freeze: Freeze for up to 3 months. Thaw overnight in the refrigerator, then warm in a 350°F oven for 20-25 minutes or until heated through.

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4.92 from 391 votes

Triple Berry Crisp

Author: Lauren Allen
The easiest Triple Berry Crisp made with frozen berries for a juicy berry filling nestled under a crispy oat topping. 
Prep: 10 minutes
Cook: 45 minutes
Cool: 10 minutes
Total: 1 hour
Servings: 9

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Ingredients 
 

Crumble Topping:

Berry Filling:

Instructions 

  • Preheat oven to 350 degrees F.
  • Make the topping first by combining the oats, flour, sugar, brown sugar, cinnamon and salt. Stir to combine. 
  • Pour in the melted butter and stir to incorporate. Set aside.
  • In another bowl add the frozen berries, flour, sugar, salt, lemon juice and vanilla extract and toss gently to combine. 
  • Pour mixture into an 8x8’’ or similar size casserole dish or pie plate. Glob the topping ingredients evenly over the top (I say “glob” because the mixture will be softer than your normal dry crumble topping, because of the melted butter).
  • Bake for 40-45 minutes until the topping is golden brown and berries are bubbling around the edges. 
  • Remove from the oven, place on a wire rack, and allow to cool for at least 7-10 minutes before serving. Serve with a scoop of vanilla ice cream, if desired.
  • Cover leftovers and store in the refrigerator for up to 5 days.
  • You might also love easy homemade apple crisp!

Notes

*I use the Costco, Kirkland brand of frozen berries called “Three Berry Blend” that includes blueberries, blackberries and raspberries. *You can use fresh berries, but you may need to cut down on the baking time by at least 5 minutes.
Make ahead instructions:
To make ahead: Bake and cool the crisp completely, then cover it with a double layer of aluminum foil. I don't suggest preparing the crisp and storing it, unbaked, in the fridge because the topping will get soggy.
To freeze: Freeze for up to 3 months. Thaw overnight in the refrigerator, then warm in a 350°F oven for 20-25 minutes or until heated through.

Nutrition

Calories: 372kcal, Carbohydrates: 58g, Protein: 3g, Fat: 15g, Saturated Fat: 9g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 4g, Trans Fat: 1g, Cholesterol: 36mg, Sodium: 73mg, Potassium: 124mg, Fiber: 4g, Sugar: 36g, Vitamin A: 457IU, Vitamin C: 2mg, Calcium: 35mg, Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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*I originally shared this recipe October 2016. Updated March 2020 with process photos.

Have you tried this recipe?!

RATE and COMMENT below! I would love to hear your experience.

The easiest Triple Berry Crisp made with frozen berries for a juicy berry filling nestled under a crispy oat topping.| Tastes Better From Scratch

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About The Author

Lauren Allen

Welcome! I’m Lauren, a mom of four and lover of good food. Here you’ll find easy recipes and weeknight meal ideas made with real ingredients, with step-by-step photos and videos.

4.92 from 391 votes (303 ratings without comment)
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Kris
4 years ago

This is a great recipe, and people love it when I serve it. I have guests visiting who are non-dairy. Do you think I could substitute a good quality margarine for the butter? Thank you.

Loretta
5 years ago

5 stars
I love this recipe. It is simple and delicious! I love that it isn’t loaded with sugar in the filling. I also cut the sugar in the topping by 1/4 cup as well
Definitely recommend to anyone who is not a confident baker. It is that easy!

NataschaKay
5 years ago

5 stars
Loved it! Really easy to prepare, and delicious!

Sarah
5 years ago

5 stars
Excellent and easy. I added some lemon zest and it was lovely.

Anette Power
3 years ago
Reply to  Sarah

I bet the lemon zest was a delicious addition! i’ll try that for sure.

Renee
5 years ago

Brown sugar has molasses added – the only difference between regular sugar and brown sugar..

Hannah
5 years ago

5 stars
This was a really great recipe! I used frozen raspberries and actually let the crumble topping get cold in the fridge before assembly because I had made the crumble ahead of time. Even with those adjustments, it turned out great. I’d make it again for sure!

Isabel
5 years ago

Made this today. Absolutely delicious!!

C
5 years ago

5 stars
Sorry meant to give this 5 STARS! ⭐⭐⭐⭐⭐

C
5 years ago

4 stars
Sorry meant to give this 5 STARS! ⭐⭐⭐⭐⭐

Jackie
5 years ago

5 stars
This looks amazing! I am in South American and want to make this but I can’t find brown sugar anywhere. Can I just use regular white granulated sugar for the topping? Thank you!

Jackie
5 years ago
Reply to  Jackie

Hey! I also live in South America (Colombia) and had this same problem initially when baking US recipes. If they have panela (unrefined cane sugar) where you are, use that! It has a really similar molasses-y texture and flavor to brown sugar and is available in most South American countries, though it may go by a different name where you are. I’ve used it in a huge variety of US baked goods recipes and it’s worked beautifully.

Mariana
5 years ago
Reply to  Jackie

5 stars
I use regular sugar because my family doesn’t like the brown sugar flavor. It always turns out really good and super crispy.

Caroline
5 years ago
Reply to  Jackie

Brown sugar is actually just white sugar with molasses added to it! If you can get molasses, you can make your own brown sugar. (Or just add a teaspoon or so of molasses to your recipe.)

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