Enjoy my simple and easy Blueberry Crisp all year long! The sweet, juicy blueberry filling and crisp golden oat topping are a delicious dessert combination that takes only 10 minutes to prepare. Serve it warm with a scoop of vanilla ice cream. 

If you love fruit desserts, don’t go another minute without trying my Peach Crisp! 🙂

Half eaten Blueberry Crisp

If you’re looking for a quick and easy dessert, this is it! And let me tell you, I’ve perfected it, and I take it to all my summer gatherings! It’s so simple to whip together for a tasty summer (or anytime) treat or bring to a cookout for everyone to enjoy. 

With the addition of our secret ingredient, lemon (zest and juice), you’ll soon get addicted to this delightfully sweet yet crunchy oat-topped recipe. 

The glorious combination of citrus and berry really ups the flavor profile, making this lemon blueberry crisp sing—and trust me, the recipe requests will follow!

If you want an equally delicious treat, try my Blueberry Cobbler with Cookie Dough Crust and this incredible No-Bake Blueberry Cheesecake Pie. Insanely good!

Ingredient Notes

With some berries and simple pantry ingredients, you can make your recipe for fresh blueberry crisp with 10 minutes of prep work.

Ingredients to make a fruit crisp

FOR THE JUICY FILLING

Fresh Blueberries – the star of the recipe! You can use frozen blueberries.
Sugar – granulated white sugar is recommended.
Flour – all-purpose flour helps thicken the crumble topping.
Ground Cinnamon – for a hint of flavor.
Fresh Lemon – both the zest and lemon juice for a little citrus punch.

FOR THE CRUMBLY TOPPING 

Butter – we use salted since that’s what we usually have on hand.
Brown Sugar – light or dark brown sugar WILL WORK IN THE RECIPE.
Flour – all-purpose (see notes for substitutions) 
Rolled Oats – we prefer the taste and texture of old-fashioned oatmeal
Pecans – or your favorite chopped nuts like walnuts or almonds.
Ground Cinnamon & Ground Nutmeg – for a little warm spice flavor.

Topping Ideas

  • Vanilla or cookie dough ice cream
  • Maple syrup
  • Whipped cream

Step-by-Step Instructions

To start, place your oven rack in the center position and preheat your oven to 375 degrees F. 

Step 1 – Prep Lemon

Zest the whole lemon, then cut it in half and squeeze the juice from one half. 

PRO TIP – we like to use a Microplane to zest like a pro!

Step 2 – Mix Filling

In a medium bowl, toss blueberries (washed & dried), granulated sugar, lemon zest, lemon juice (approximately 1 tablespoon), and 3 tablespoons of flour together. 

Blueberries with sugar, lemon, and flour in a bowl

Then, place the blueberry mixture in a 2-quart baking dish. 

Blueberries in a baking dish

Step 3 – Mix Topping

Next, give the same bowl you mixed your blueberries a quick wipe, and then combine the butter, brown sugar, old-fashioned oats, flour, nuts, cinnamon, and nutmeg with a fork.

PRO TIP – Reusing the same bowl makes this a one-bowl, one-pan recipe!!

crumble topping for fruit crisp

Spread the topping over the blueberry filling. 

Fruit crisp ready to bake in the oven

Step 4 – Bake

Place in the oven with a cookie sheet underneath and bake for 35-40 minutes or until the top is golden brown and the fruit is bubbly. Cool slightly and serve warm or at room temperature. 

Tips & Tricks

  • You can use any 2-quart baking dish to make your blueberry crisp. We like to use our 9-inch pie pan or a 9×9 baking dish. 
  • If you’re not a fan of pecans, you can leave them out or swap them for your favorite nut, like walnuts or almonds. 
  • To prevent an oven cleanup nightmare, place a cookie sheet under your fruit crisp while it’s baking. Baked-on fruit is HARD to clean!
  • The fruit combinations in the recipe can be mixed and matched. Try blueberry peach, blueberry apple, or strawberry rhubarb.
  • In our opinion, vanilla ice cream is a must for serving!
Blueberry crisp with ice cream on top

Frozen Blueberry Recipes

Blueberry Cobbler
Baked Blueberry Oatmeal Cups
Blueberry Oat Bars
Blueberry Smoothie

How to Store a Blueberry Crisp

Refrigerator – Store any leftover crisp in the refrigerator in an airtight container. If desired, reheat slightly on high power in the microwave. 

Freeze Before Baking – Prepare the recipe as directed and cover it tightly with plastic wrap and then foil. Freeze for up to one month. To bake the blueberry crisp from frozen, preheat your oven to 375 degrees F and bake for about 50-60 minutes or until hot and bubbly. 

Freeze After Baking – Freeze your crisp in an airtight container for up to 3 months. Don’t forget to label and date it. 

Make-Ahead – Make the recipe for blueberry crisp with oats ahead and then refrigerate until ready to bake. Follow the baking instructions when ready to serve. You can also make a batch of topping and freeze it for later. When you have fresh fruit, prep it and add your frozen crumbly oat topping and bake as instructed. 

blueberry dessert in a baking dish

FAQs

What type of baking dish should I use?

We like to use a deep-dish 9-inch pie plate to make a fruit crisp, but any 2-quart oven-safe baking dish would be great. 

How do I make a dairy-free & gluten-free blueberry crisp?

We suggest using gluten-free rolled oats instead of regular oats in the topping. Also, instead of all-purpose flour or whole wheat flour, use almond flour in the topping and corn starch in the fruit filling. To make it dairy-free, omit the butter and use coconut oil in the topping mixture. 

Can I use frozen blueberries?

Yes, you can use frozen blueberries to make a blueberry crisp recipe, the same as you would fresh berries. However, you may want to increase the amount of flour (or cornstarch) in the berry filling by 1 tablespoon due to the higher moisture content. You also want to increase the cooking time to approximately 45 minutes. 

More Fruit Dessert Recipes

Brownie Strawberry Shortcake
Strawberry Shortcake
Berry Icebox Cake
Blueberry Tart with Puff Pastry
Cherry Pie Bombs

Looking for a yummy brownie recipe? Layers of fudgy chocolate brownie with a creamy center, topped with berries make this Brownie Strawberry Shortcake a winning dessert combination!

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blueberry crumble in a baking dish

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Half eaten Blueberry Crisp
5 from 4 reviews

Easy Blueberry Crisp Recipe

Enjoy this simple & easy Blueberry Crisp all year long! The sweet juicy blueberry filling and crisp golden oat topping is a delicious dessert combination that takes only 10-minutes to prep.

Ingredients
 

Blueberry Filling

  • 5 cups (740 g) blueberries, fresh or frozen
  • 2 tablespoons (2 tablespoons) granulated white sugar
  • 3 tablespoons (3 tablespoons) all-purpose flour
  • ½ teaspoon (1 teaspoon) cinnamon
  • 1 (1) lemon

Crumble Topping

  • ¼ cup (57 g) butter, cut into small pieces
  • ½ cup (110 g) brown sugar, light or dark
  • ¼ cup (31 g) all-purpose flour
  • ¾ cup (61 g) oats, old-fashioned or quick
  • ½ cup (50 g) pecans chopped, or other nuts optional
  • ½ teaspoon (1 teaspoon) ground cinnamon
  • ¼ teaspoon (1 teaspoon) ground nutmeg

Equipment

  • medium mixing bowl
  • 2-quart baking dish
  • Spatula or cooking spoon
  • zester

Instructions
 

  • Place your oven rack in the center position and preheat your oven to 375 degrees F. 
  • Zest the whole lemon. Then cut it in half and squeeze the juice from one half (about 1 tablespoon).
  • In a medium bowl, toss blueberries (washed & dried), granulated sugar, lemon zest, lemon juice (approximately 1 tablespoon), cinnamon, and 3 tablespoons of flour together. Then, place the blueberry mixture in a 2-quart baking dish. 
  • Give the same bowl you mixed your blueberries a quick wipe, and then combine the butter, brown sugar, old-fashioned oats, flour, nuts, cinnamon, and nutmeg with a fork. It should be a bit coarse.
  • Place in the oven with a cookie sheet underneath and bake for 35-40 minutes or until the top is golden brown and the fruit is bubbly. Cool slightly and serve warm or at room temperature. 

Notes

  • BAKING DISH: You can use any 2-quart baking dish to make your blueberry crisp. We like to use our 9-inch pie pan or a 9×9 baking dish. 
  • NUTS: If you’re not a fan of pecans, you can leave them out or swap them for your favorite nut, like walnuts or almonds. 
  • CLEAN UP: To prevent an oven cleanup nightmare, place a cookie sheet under your fruit crisp while it’s baking. Baked-on fruit is HARD to clean!
  • FRUIT: You can mix and match the fruit combinations in the recipe. Try blueberry peach, blueberry apple, or strawberry rhubarb.
Store any leftover crisp in the refrigerator in an airtight container. If desired, reheat slightly on high power in the microwave. 
To freeze, store in an airtight container in the freezer for up to three months. See additional freezing tips within the article. 
Nutritional information is approximate and was calculated using a recipe nutrition label generator and will vary based on cooking methods and brands of ingredients used.
Calories: 363kcal, Carbohydrates: 57g, Protein: 4g, Fat: 15g, Saturated Fat: 6g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 6g, Trans Fat: 1g, Cholesterol: 20mg, Sodium: 75mg, Potassium: 232mg, Fiber: 6g, Sugar: 35g, Vitamin A: 313IU, Vitamin C: 22mg, Calcium: 46mg, Iron: 2mg
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