Blueberry Crumble Bars
Indulge your senses with these delightful Blueberry Crumble Bars, a perfect blend of tart and sweet flavors nestled within a buttery, crumbly topping. The balance of juicy blueberries and crunchy oats creates a comforting treat that’s ideal for any occasion, whether you want a midday snack or a dessert for a gathering. These bars fill your kitchen with an inviting aroma, hinting at the deliciousness that awaits. Not only do they taste great, but they also look stunning when served on a dessert tray. Give them a try, and you’ll find that they become a staple in your dessert repertoire.

Ingredients
- 1/2 cup white sugar: Adds sweetness to the crumble and enhances the blueberries’ flavor.
- 1/4 cup brown sugar: Provides a rich, caramel-like flavor and helps create a moist texture.
- 1 cup all-purpose flour: Forms the base of the crumble and provides structure.
- 3/4 cup quick oats: Offers a hearty texture and a lovely chewiness.
- 1 egg yolk (room temperature): Acts as a binding agent for the crumble, enriching the overall flavor.
- 1/2 cup unsalted butter (melted): Brings richness and moisture, contributing to the crumbly texture.
- 3 tbsp lemon juice: Brightens the flavor of the blueberries and balances sweetness.
- 2 cups frozen blueberries (or fresh): The star of the recipe, providing a burst of juicy flavor.
Step-by-Step Instructions
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Preheat your oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper for easy removal.
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In a large mixing bowl, combine the brown sugar, white sugar, all-purpose flour, and quick oats. Stir until everything is well combined.
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Add the egg yolk and melted unsalted butter to the dry ingredients. Mix gently until the mixture is crumbly.
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Reserve 1 cup of the crumble mixture for later use. Press the remaining mixture evenly into the bottom of the prepared baking pan to create the base layer.
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In a separate bowl, combine the frozen blueberries with white sugar and lemon juice. Mix gently to coat the blueberries.
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Spoon the blueberry mixture over the pressed base and spread it evenly across the surface.
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Sprinkle the reserved crumble mixture over the blueberry filling to create a topping.
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Bake in the preheated oven for 30-35 minutes, or until the topping is golden brown and the filling is bubbling.
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Allow the bars to cool in the pan on a wire rack. Once cooled, lift them out using the parchment paper and cut into squares.
Recipe Details
- Prep Time: 15 minutes
- Cook Time: 30-35 minutes
- Total Time: 45-50 minutes
- Servings: 16
- Calories: Approximately 150 calories per bar
Tips, Storage & Variations
- For a deeper flavor, consider toasting the oats lightly before adding them to the crumble mixture.
- Store the bars in an airtight container at room temperature for up to 3 days or refrigerate for a week.
- You can freeze the bars for up to 2 months; wrap them individually in plastic wrap and then in foil.
- Add a sprinkle of cinnamon or nutmeg to the crumble mixture for an extra layer of flavor.
Frequently Asked Questions
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1. Can I use fresh blueberries instead of frozen?
Yes, fresh blueberries work perfectly in this recipe. Just ensure they are ripe and juicy.
2. How should I store Blueberry Crumble Bars?
Store them in an airtight container at room temperature or in the refrigerator for added freshness.
3. Can I substitute the egg yolk?
If you prefer a vegan option, you can use a flax egg or unsweetened applesauce as a replacement.
4. What other fruits can I use in this recipe?
Feel free to substitute other berries like raspberries or blackberries, or even diced peaches or apples for a variation.
5. How do I know when the bars are done baking?
The bars are ready when the topping is golden brown and the filling is bubbly, which usually takes about 30-35 minutes.
6. Can I make these bars gluten-free?
Yes, you can use a gluten-free flour blend and certified gluten-free oats to make these bars gluten-free.
People Also Ask
1. Are Blueberry Crumble Bars healthy?
While they contain sugars and butter, using whole ingredients, such as oats and fruit, gives you some nutritional benefits.
2. Can I make the crumble in advance?
Yes, prepare the crumble mixture ahead and store it in the fridge for up to 3 days before baking.
3. What is the best way to cut the bars?
Use a sharp knife and clean cuts to avoid crumbling the bars as you slice them.
4. Can I add nuts to the crumble?
Absolutely! Chopped pecans or walnuts add a delightful crunch.
5. How many bars does this recipe make?
This recipe yields about 16 bars, depending on how large you cut them.
6. Can I double the recipe?
Yes, feel free to double the ingredients and bake in a larger pan, extending the baking time as necessary.
Conclusion
Blueberry Crumble Bars are a charming treat that everyone will love, combining the sweetness of blueberries with a crunchy top. Try this simple recipe and bring joy to your next gathering or enjoy them yourself for a delightful snack. Don’t forget to check out more ways to enjoy blueberries with these delicious recipes: Blueberry Bars with Crumble Topping and Blueberry Crumble Bars Recipe. Happy baking!
PrintBlueberry Crumble Bars
Delightful Blueberry Crumble Bars with a perfect blend of tart and sweet flavors, all nestled within a buttery, crumbly topping.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 16 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
- 1/2 cup white sugar
- 1/4 cup brown sugar
- 1 cup all-purpose flour
- 3/4 cup quick oats
- 1 egg yolk (room temperature)
- 1/2 cup unsalted butter (melted)
- 3 tbsp lemon juice
- 2 cups frozen blueberries (or fresh)
Instructions
- Preheat your oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper.
- Combine the brown sugar, white sugar, all-purpose flour, and quick oats in a large mixing bowl.
- Add the egg yolk and melted unsalted butter to the dry ingredients, mixing gently until crumbly.
- Reserve 1 cup of the crumble mixture for topping. Press the rest into the bottom of the prepared pan.
- Mix the frozen blueberries with white sugar and lemon juice in a separate bowl.
- Spoon the blueberry mixture over the pressed base and spread evenly.
- Sprinkle the reserved crumble mixture over the blueberry filling.
- Bake for 30-35 minutes until golden brown and bubbling.
- Cool in the pan on a wire rack, then lift out using the parchment paper and cut into squares.
Notes
For a deeper flavor, toast the oats lightly before adding. Store bars in an airtight container for up to 3 days at room temperature or refrigerate for a week.
Nutrition
- Serving Size: 1 serving
- Calories: 150
- Sugar: 10g
- Sodium: 100mg
- Fat: 8g
- Saturated Fat: 5g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 20g
- Fiber: 2g
- Protein: 2g
- Cholesterol: 20mg