Best Apple Blueberry Crisp Recipe With Oats

Apple blueberry crisp with golden brown oat topping in white baking dish served with vanilla ice cream

Apple Blueberry Crisp is the perfect dessert that brings together the best of summer and fall in one delicious dish. This homemade fruit crisp with oats combines tart apples with juicy blueberries, all topped with a golden, buttery oatmeal crumb topping. I still remember the first time I tried this combination. I was making my usual apple crisp recipe one autumn evening when I spotted leftover blueberries in my fridge. On a whim, I tossed them in with the apples. The result? A stunning purple-blue filling that tasted even better than it looked.

This blueberry crisp recipe easy enough for beginners but impressive enough for guests. The fruit becomes tender and bubbling while the crisp topping turns golden and crunchy. It’s comfort food at its finest. Why make this fruit crisp recipe? It’s versatile, naturally sweet, and fills your kitchen with an irresistible aroma. Plus, you can enjoy it warm with ice cream for dessert or over yogurt as one of the most satisfying breakfast ideas.

Ingredients

Raw ingredients for apple blueberry crisp including fresh blueberries, sliced apples, rolled oats, brown sugar, and butter

For the Fruit Filling:

• 3 cups fresh blueberries

• 3 cups peeled and chopped apples (about 3 medium apples)

• 1/4 cup granulated sugar

• 2 tablespoons cornstarch

• 1 tablespoon fresh lemon juice

• 1 teaspoon vanilla extract

• 1 tablespoon cinnamon

For the Crisp Topping Recipe Oats:

• 1 cup old-fashioned rolled oats

• 1 cup all-purpose flour

• 1/2 cup packed brown sugar

• 1/2 teaspoon salt

• 1/2 cup (1 stick) salted butter, melted

Ingredient Notes:

Blueberries: Fresh berries work best, but frozen fruit recipes are totally doable. If using frozen, don’t thaw them first.

Apples: Choose varieties that hold their shape when baked. Golden Delicious, Honeycrisp, Jonagold, and Fuji are excellent choices. These apples stay firm and won’t turn mushy like some softer varieties.

Oats: Old-fashioned rolled oats create the perfect texture. Quick oats work too, but avoid steel-cut oats. For gluten-free needs, use certified gluten-free oats.

Butter: Melted butter is key. It helps the oatmeal crumb topping for apple crisp come together easily without needing a pastry cutter or food processor.

Cornstarch: This thickens the fruit juices as they release during baking, preventing a watery crisp.

Instructions

Step 1: Prepare Your Baking Dish

Preheat your oven to 350°F. Grease a 9×9-inch or 11×7-inch baking dish with butter or cooking spray. Set aside.

Step 2: Mix the Fruit Filling

In a large bowl, combine blueberries, chopped apples, sugar, cornstarch, lemon juice, vanilla, and cinnamon. Stir gently until the fruit is evenly coated. The cornstarch should disappear into the mixture without clumps.

Pour this mixture into your prepared baking dish. Spread it out evenly.

Mixing fresh blueberries and chopped apples with cinnamon and sugar in large bowl for fruit crisp

Step 3: Create the Oat Topping

In a medium bowl, mix together oats, flour, brown sugar, and salt. Drizzle the melted butter over the dry ingredients. Stir with a fork until the mixture becomes crumbly and resembles wet sand. You want clumps to form naturally.

Step 4: Assemble Your Apple Berry Crisp

Scatter the oat topping evenly over the fruit mixture. Don’t press it down. Leave those beautiful clumps intact as they’ll turn golden and crunchy in the oven.

Step 5: Bake to Perfection

Place the dish in the preheated oven. Bake for 45 to 55 minutes. You’ll know it’s done when the fruit juices bubble around the edges and the topping turns golden brown and feels firm to the touch.

Step 6: Cool and Serve

Let the crisp cool on a wire rack for at least 15 minutes. This allows the filling to set slightly, making it easier to serve.

Total Time: 1 hour 15 minutes (25 minutes prep, 50 minutes baking) Servings: 8 generous portions

Baked apple blueberry crisp cooling on wire rack with golden topping and bubbling fruit juices

Pro Tips and Variations

Expert Tips:

Double the topping: Make extra crisp topping and freeze it for up to 3 months. Next time you want baked apples or any fruit crisp, you’ll have topping ready to go.

Apple selection matters: The right apples make all the difference. Avoid Red Delicious or Gala as they become too soft. Stick with firmer varieties that maintain their texture.

Don’t skip the lemon juice: It prevents the apples from browning and brightens the overall flavor. This small addition makes a big impact.

Melted butter is easier: Unlike traditional apple crumble recipe methods that call for cold butter, melted butter simplifies the process without sacrificing texture.

Delicious Variations:

Apple Cranberry Crisp: Swap 1 cup of blueberries for fresh or frozen cranberries. Add an extra 2 tablespoons of sugar to balance the tartness.

Berry Mix: Use a combination of blueberries, raspberries, and blackberries for a multi-berry version.

Frozen Fruit Recipes: This works beautifully with frozen fruit. Add 5 extra minutes to the baking time and an extra tablespoon of cornstarch.

Nutty Topping: Add 1/2 cup chopped pecans or walnuts to the oat mixture for extra crunch.

Spice It Up: Add 1/2 teaspoon nutmeg or 1/4 teaspoon cardamom to the fruit mixture for a flavor twist.

Gluten-Free Version: Use gluten-free flour and certified gluten-free oats. The texture remains perfectly crumbly.

Serving Suggestions

This apple blueberry crisp shines in multiple settings.

Classic Dessert Style: Serve warm with a scoop of vanilla ice cream. As the ice cream melts into the warm fruit, it creates an incredible contrast of temperatures and textures.

Morning Treat: Spoon a portion over plain Greek yogurt for one of the healthiest breakfast ideas. The protein from yogurt balances the sweetness perfectly.

With Whipped Cream: A dollop of fresh whipped cream or crème fraîche adds richness without overwhelming the fruit flavors.

Special Occasions: This dessert works wonderfully for potlucks, Fourth of July gatherings, or Thanksgiving when you want something different from apple blueberry pie.

Storage and Reheating:

• Room temperature: Up to 24 hours

• Refrigerator: 4 to 5 days in an airtight container

• Freezer: Up to 3 months

To reheat, warm in a 350°F oven for 20 minutes or microwave individual portions for 30 seconds.

What’s the Difference from Apple Blueberry Crumble?

While often used interchangeably, crisps traditionally contain oats in the topping, while crumbles don’t. This recipe is technically a crisp because of the rolled oats that create that signature crunchy texture.

Conclusion

This apple blueberry crisp recipe with oats delivers everything you want in a dessert: simple preparation, incredible aroma, and satisfying flavors. The combination of tart apples and sweet blueberries creates a depth that single-fruit crisps can’t match.

Whether you’re an experienced baker or just starting out, this recipe is forgiving and flexible. Use what’s in season, try different apple varieties, or experiment with the variations suggested above.

The beauty of homemade fruit crisp with oats lies in its simplicity. No fancy techniques, no complicated steps. Just good ingredients treated with care.

Make this crisp on a Sunday afternoon. Let it fill your home with warmth. Serve it to people you love. That’s what good food is all about.

FAQs

Can I make this ahead of time? Yes. Prepare the fruit filling and topping separately, store them in the refrigerator, and assemble just before baking. Or bake completely and reheat before serving.

What if I only have frozen blueberries? Frozen works great. Don’t thaw them first. Add them frozen directly to the apple mixture and increase baking time by 5 minutes if needed.

Why is my crisp topping soggy? This happens if the fruit releases too much liquid. Make sure you use enough cornstarch and don’t skip it. Also, let the crisp cool for at least 15 minutes so the juices can thicken.

Can I reduce the sugar? Absolutely. Start with 2 tablespoons instead of 1/4 cup in the fruit filling. Taste your apples first. If they’re very sweet, you may need even less sugar.

How do I know when it’s done? Look for bubbling juices around the edges and a golden-brown topping that feels firm when lightly pressed. The house will smell amazing too.

What’s the difference between this and an apple crumble recipe? Crisps include oats in the topping, while crumbles typically don’t. Both are delicious, but oats add extra texture and nutrition.

Can I use different fruits? Yes! Try peaches and blueberries, apples and cranberries, or mixed berries. Just keep the total fruit amount at 6 cups.

Do I need to peel the apples? Yes, for the best texture. Apple peels become tough and chewy when baked. Peeling takes a few extra minutes but makes a noticeable difference.

Apple blueberry crisp with golden brown oat topping in white baking dish served with vanilla ice cream
John

Apple Blueberry Crisp

This Apple Blueberry Crisp combines sweet-tart apples and juicy blueberries under a buttery, golden oat topping. It’s the perfect cozy dessert to enjoy warm with a scoop of vanilla ice cream or a dollop of whipped cream.
Prep Time 15 minutes
Cook Time 40 minutes
Cooling Time 10 minutes
Total Time 55 minutes
Servings: 6 servings
Course: Dessert
Cuisine: American
Calories: 285

Ingredients
  

Fruit Filling
  • 3 cups apples peeled, cored, and sliced
  • 2 cups blueberries fresh or frozen
  • 1/4 cup granulated sugar
  • 1 tbsp lemon juice freshly squeezed
  • 1 tbsp cornstarch for thickening
Crisp Topping
  • 3/4 cup old-fashioned oats
  • 1/2 cup all-purpose flour
  • 1/3 cup brown sugar packed
  • 1/2 tsp ground cinnamon
  • 1/4 tsp salt
  • 6 tbsp unsalted butter cold, cut into small cubes

Method
 

  1. Preheat your oven to 350°F (175°C) and lightly grease a 9×9-inch baking dish.
  2. In a large bowl, combine sliced apples, blueberries, sugar, lemon juice, and cornstarch. Toss until the fruit is evenly coated, then transfer the mixture to the prepared baking dish.
  3. In another bowl, mix oats, flour, brown sugar, cinnamon, and salt. Add cold butter cubes and use your fingers or a pastry cutter to blend until the mixture resembles coarse crumbs.
  4. Sprinkle the oat topping evenly over the fruit mixture.
  5. Bake for 35–40 minutes, or until the topping is golden brown and the filling is bubbling around the edges.
  6. Allow the crisp to cool for about 10 minutes before serving. Enjoy warm with vanilla ice cream or whipped cream.

Notes

For a nutty crunch, add chopped pecans or almonds to the topping. You can also substitute half of the flour with almond flour for extra flavor and texture.
Nutrition Information
Calories: 285 kcal
Total Fat: 12g
Saturated Fat: 7g
Cholesterol: 30mg
Sodium: 180mg
Total Carbohydrates: 44g
Dietary Fiber: 4g
Sugars: 24g
Protein: 3g
Vitamin C: 15% DV

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