Berry Crisp Frozen Berries


Don’t be the last on your block to try Berry Crisp Frozen Berries! Delightfully seasoned and perfectly portioned, these summertime treats will be a delicious addition to any family gatherings or parties. Crisp Frozen Berries are a must-have smoothie ingredient. The tart flavor and sweet berry aroma make it the perfect addition to your weekend smoothies.


This quick and easy berry crisp is made with frozen mixed berries is so delicious and only takes minutes to prepare! Using frozen mixed berries, there is no washing or chopping, and mixes altogether in the same dish you bake it in! Make this easy Berry Crisp on a weeknight when you don’t have a lot of time or serve for any celebration!

We are trying to eat a little less sweets in our home to start the year after enjoying many sweet things over the holidays. But we did decide that once a week, we can have a treat. Because you know, balance!

When I started thinking about what special treat I could make a few weekends ago I looked through our pantry and freezer and decided to use up some frozen mixed berries to make a berry crisp! It was SO quick and easy to make, not to mention delicious, that I decided to make it again this weekend to bring over to some friends!

So this time I took some photos, jotted down the recipe as I went, and decided to put it up on the blog because it was just THAT good.

Using the frozen mixed berries makes this recipe especially easy because there is no washing, drying, or prepping the berries. You just cut the bag open and pour it in. No defrosting, it bakes in the oven frozen and comes out bubbly, cooked through but not mushy at all.

We keep all of the ingredients for this easy Berry Crisp in our house pretty much at all times, and my guess is you probably do, too. So if you are looking for a super simple and delicious dessert, this one’s for you!

image of baked mixed berry crisp in white scalloped baking dish on kitchen towel


The main difference between a crumble and a crisp is that the crisp contains oats and the crumble does not. They are both a streusel topping combining flour, butter and sugar, but the crisp has the addition of oats, and in some recipes, nuts as well. We love oats around here so there was no question that this was going to be a crisp!


No, you do not need to thaw frozen berries before baking. They will bake in the oven with the butter, flour, honey mixture so that the filling is perfectly baked without being too runny from the juices of the berries.


To bake with these frozen mixed berries, you simply mix it with the flour and butter in the baking dish. Drizzle the honey, vanilla and lemon juice on top and then cover with the crisp. Bake in the oven until the top gets golden and you can see the berry mixture bubbling underneath.


There are several things you can do with a bunch of frozen berries! Make this berry crisp or heat in a saucepan with some honey and butter till it begins to bubble and thicken for a delicious berry syrup for pancakes or waffles. Add frozen berries on top of greek yogurt with a drizzle of honey for an easy breakfast. Add to a smoothie.


Store berry crisp in a covered baking dish covered in the fridge for 3-4 days. You can transfer it to a smaller dish or leave it in the dish it was baked in.


You can reheat berry crisp in the oven or in the microwave. If reheating in the oven, place the cold baking dish of berry crisp in the cool oven and then set to 300 degrees F. Allow to come to temperature and bake for 10 minutes until warmed through. This berry crisp is also delicious to eat cold in my opinion!

close up image of berry crisp serving on white plate with baked strawberry blueberry and blackberry with oat crumble topping


  • Baking Dish – 9 x 9 or 1.5 – 2 Quart
  • Measuring Cups & Spoons
  • Medium sized Mixing Bowl
  • Citrus Juicer
  • Sharp knife – to cut the butter
  • Spatula/Spoon


Preheat oven to 375℉. Pour your frozen mixed berries into a 1.5 – 2 Quart baking dish (a 9×9 baking dish will work great). Any combo of frozen mixed berries will work. My bag from Trader Joe’s had strawberries, blueberries, blackberries and raspberries.

image of white baking dish, honey, kerrygold unsalted butter, glass jar of oats, brown sugar, bag of organic frozen mixed berries, and measuring spoons on kitchen counter

Add the flour and mix together. Cube 4 TBS of unsalted butter and place evenly over the frozen mixed berries. Drizzle the honey, fresh squeezed lemon juice (I like to use this citrus juicer any time I juice lemons, keeps the seeds out), and vanilla extract over the berries.

Next, make the crisp topping. Cube the cold butter into cubes and add to a mixing bowl. Kerrygold is our favorite butter from grassfed cows!

Add in the flour, oats (make sure they are rolled old-fashioned oats and not quick oats or steel cut), brown sugar, fine sea salt, and cinnamon. Mix together with your hands till the butter is well incorporated throughout the mixture.

Crumble the crisp topping with your hands to cover the frozen mixed berries mixture.

Place in the oven for 35-40 minutes until the berry mixture is bubbling and the crisp topping is golden and crisp!

Let sit for 30-40 minutes and enjoy warm on its own or with some vanilla ice cream!

Mixed Berry Crisp

Whether you use fresh or frozen berries, fruit crisps are a must-have dessert. This Mixed Berry Crisp is the ultimate in comfort food, especially paired with ice cream.

Our fruit dessert recipes are always the most popular in the winter. Everyone seems a little worn out on pumpkin and spicy cookies and cakes. They want vibrant, sweet berries and tart lemons.

This triple berry crisp recipe is perfect for winter days using frozen fruit, but delicious in the summer with garden fresh berries as well.

About this Mixed Berry Crisp:

  • Flavor: Berries aren’t overly sweet fruits, which make it perfect for a crisp with a sweet streusel topping. This recipe calls for just ¼ cup sugar in the berries and ½ cup sugar in the topping. You can always add more if you’d like, but if you’re putting a big scoop of vanilla ice cream on top, I think you’ll find that amount of sugar is all you need.
  • Texture: The berries will soften during baking and create a sweet syrup that will thicken as it sets. The crisp topping will be a little crunchy right when it comes out of the oven, but will soften as it sits.
  • Method: You’ll love how quick this recipe comes together. You’ll only need about 10 minutes to mix the berries and topping. Then pop it into the oven to bake for about 45 minutes.

Fresh Fruit vs Frozen Fruit

Fresh or frozen fruit will work for this crisp recipe. If you have frozen fruit, however, you’ll want to thaw and drain the fruit first. Gently pat the fruit dry with a paper towel. Then you’re ready to continue on with the recipe.

How to Make Mixed Berry Crisp

  • Prepare. Preheat the oven to 375°F. Lightly grease a 9×13 baking dish.
  • Mix the berries. Toss berries with lemon juice in a large bowl. Add the melted butter, cornstarch, vanilla and sugar to the baking dish. Lightly toss together to combine. Pour the berries into the prepared baking dish.
  • Mix the topping. In a medium bowl, mix the topping ingredients: flour, oats, brown sugar, baking powder and cinnamon. Using a pastry blender or two forks, cut the butter into the dry ingredients until it resembles small crumbles. Sprinkle the oat topping over the fruit.
  • Bake. Bake for 40-45 minutes. The topping should be light golden brown and the filling will be bubbling. Let it rest for 15 minutes before serving.

Recipe Variations

  • Love pie? Try our mixed berry cobbler pies. It’s 3 of our favorite desserts in one.
  • Use gluten free oats and flour for a gluten free version of this recipe.
  • Try using apples for an apple crisp.
  • Add pecans to the crisp topping to add a little crunch.


You likely have everything you need to make this berry crisp with frozen berries! Here’s what goes into this recipe: 

  • All-purpose flour: Is added to the crisp topping for structure and to the filling to thicken it up. 
  • Sugar: I used brown sugar in the topping for sweetness and flavor, and granulated sugar to the filling to sweeten things up. 
  • Cinnamon: Pairs perfectly with the mixed berries. Add more or less, to taste. 
  • Salt: Balances out the sweetness of the dish. 
  • Butter: Use unsalted butter since the amount of salt can vary between brands. If using salted butter, omit the salt called for in the recipe. 
  • Oats: You’ll want to use rolled oats for the topping, which are also called old-fashioned oats. 
  • Mixed berries: Fresh or frozen berries work. Use any berries you’d like. 


When making crisps, I like to start with the topping first. For the topping, you’ll need the flour, oats, brown sugar, cinnamon, salt, and butter.  

A little tip when making the topping: whisk the dry ingredients together first (minus the oats).  Then, cut in your cold butter and stir in the oats at the end so you don’t chop them up into tiny pieces. The topping literally takes 5 minutes to throw together, it’s almost too easy.

And then comes the fruit filling on the bottom. For the filling, you’ll just need some frozen mixed berries, sugar, and a little flour to help thicken it. You can use any type of berries, like strawberries, blueberries, blackberries, or raspberries. 

The crisp takes about 40 minutes in the oven, which is really the hardest part about making this recipe. I suggest letting it cool for just a bit, then serving it with a big scoop of ice cream or whipped cream.


Either will work! If using frozen fruit, there’s no need to thaw it before making the crisp filling. 


  • I prefer using rolled oats in the berry crisp topping, but if you only have quick oats on hand go ahead and use them. 
  • If you’d like to double the recipe, you’ll need to bake it in a 9×13-inch pan.
  • If making the crisp in individual ramekins, you’ll need to bake them for roughly 20 minutes.  

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.

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