This Blueberry Crisp with Oats is a sweet summer classic, bursting with fresh berry flavor and topped with a golden oat crumble. Made with simple ingredients like sugar, flour, cinnamon, and lemon juice, it's perfect served warm with ice cream or whipped cream.

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This blueberry crisp with oats feels like a warm hug in dessert form. With blueberries in season, I've been whipping up every recipe I can think of, but this crisp is definitely top three. It's quick, easy, and packed with juicy, jammy berries beneath a golden, oat-studded topping. Top it off with a scoop of ice cream or a dollop of whipped cream for that creamy finishing touch in every bite. Pure blueberry bliss!
If you are a blueberry fan, you'll love this Blueberry Tiramisu and Blueberry Lemon Loaf.
Why This Recipe Works
- This blueberry crisp with oats is the ultimate cozy dessert.
- It's sweet, juicy, and delightfully crunchy in every bite.
- All you need is one bowl and 35 minutes to whip up this fuss-free treat, no stress required.
- It's a great way to use leftover blueberries.
- Feeding a crowd? Just double or triple the recipe with ease.
Ingredients

See the recipe card for full information on ingredients and quantities.
- Blueberries: Select ripe, juicy blueberries for this crisp. You can also use frozen blueberries as an alternative.
- Flour: Use all-purpose flour for the blueberry filling and the crispy topping.
- Lemon: Use fresh lemon juice to add a zesty twist to the filling.
- Sugar: Use granulated sugar for the filling and brown sugar for a crispy golden topping.
- Rolled oats: Select rolled oats for the crispy topping.
- Butter: Use unsalted butter for the topping. Melt it and cool before mixing.
Tips and Substitutions
- Berries: Feel free to add strawberries or raspberries for a tasty twist.
- Sweetness: To intensify the sweetness in the filling, add a teaspoon of honey or maple syrup.
- Topping: For an extra crispy topping, chill the mixture in the fridge for 30 minutes before adding it on top of the blueberries.
How to Make Blueberry Crisp with Oats

- Preheat oven to 190C/375F. Then, add blueberries to the baking dish. Then, add the flour, sugar, and lemon juice, and stir the ingredients together until they are evenly distributed.

2. Next, in a separate bowl, add flour, brown sugar, cinnamon, oats, and stir.

3. Then, add the melted butter.

4. Stir until the mixture is evenly coated.

5. Add the oat topping on top of the blueberries in the dish

6. Bake for 35-40 minutes.
7. Serve this sweet, refreshing blueberry crisp with a few scoops of ice cream and enjoy. You may also enjoy this tasty Puff Pastry Apple Pie.

Recipe FAQs
Place leftovers in an airtight container or wrap them tightly in plastic wrap or foil. Then, freeze for up to three months.
Wrap leftovers tightly with plastic wrap in the dish or place leftovers in an airtight container and refrigerate for up to four days. Reheat in the microwave.
More Tasty Blueberry Recipes
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Blueberry Crisp with Oats
Equipment
- Pie dish
- mixing bowl
Ingredients
- 5 cups of blueberries
- 3 tablespoon of granulated sugar
- 3 tablespoon of flour
- ยฝ lemon juice
Oat Topping
- ยผ cup of butter melted
- ยฝ cup of brown sugar
- โ cup of oats
- ยผ teaspoon of cinnamon
Instructions
- Preheat your oven to 190ยฐC (375ยฐF).
- Add the blueberries to a baking dish, then sprinkle in the flour, sugar, and lemon juice. Stir gently until everything is evenly mixed and the berries are coated.
- In a separate bowl, combine the flour, brown sugar, cinnamon, and oats.
- Pour in the melted butter and stir until the oat mixture is fully coated and crumbly.
- Spoon the oat topping evenly over the blueberries in the dish.
- Bake for 35-40 minutes, or until the topping is golden and the berries are bubbling.
- Serve warm with scoops of vanilla ice cream or a dollop of whipped cream and enjoy.
Notes
- Berry Blend: Add strawberries or raspberries for a flavour-packed twist that adds extra colour and depth to your crisp.
- Sweetness: Drizzle in a teaspoon of honey or maple syrup to heighten the natural sweetness of the berry filling.
- Crispy Topping Tip: Pop the oat topping in the fridge for 30 minutes before layering. This helps it bake up beautifully golden and crunchy.










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