Blissful Blueberry Oatmeal Crumble Bars Recipe: Sweet Success!

Warm, gooey blueberry oatmeal crumble bars dance with buttery sweetness and delightful texture.

These irresistible bars blend summer’s juiciest blueberries into a comforting dessert that melts in your mouth.

Layers of golden oats create a crisp foundation for bursting blueberry goodness.

Every bite promises a perfect balance of fruity brightness and rich, crumbly base.

The simple ingredients transform into a decadent treat that speaks to classic homestyle baking.

Clusters of oats and a generous spread of fresh blueberries make this dessert a crowd-pleaser.

You’ll savor each delectable morsel of this easy-to-make, utterly addictive blueberry sensation.

Quick Recipe Overview

Prep Time: 10 minutes

Cook Time: 35 minutes

Total Time: 45 minutes

Calories: 540 kcal

Servings: 12

Ingredients for Blueberry Oatmeal Crumble Bars

• Rolled Oats: Hearty base that creates delightful rustic texture and wholesome foundation.
• All-Purpose Flour: Provides structure and helps bind ingredients together smoothly.
• Brown Sugar: Adds deep caramel-like sweetness and helps create crispy crumble topping.
• Baking Powder: Ensures light and airy texture in the crust.
• Ground Cinnamon: Introduces warm, aromatic spice that complements fruity filling.
• Salt: Balances sweetness and enhances overall flavor profile.
• Unsalted Butter: Binds ingredients and creates rich, golden crumbly consistency.

• Fresh Blueberries: Juicy star ingredient that provides natural sweetness and vibrant color.
• Granulated Sugar: Sweetens and helps berries release natural juices.
• Cornstarch: Thickens filling and prevents excessive liquid.
• Lemon Juice: Brightens flavor and adds subtle tangy undertone.
• Vanilla Extract: Rounds out fruity flavors with smooth, warm essence.

• Powdered Sugar: Light dusting adds elegant presentation and extra sweetness.

Tools You’ll Need for Blueberry Oatmeal Bar Prep

• Large Bowl: Essential for mixing dry ingredients and creating the oat crust mixture.
• 8×8-inch Baking Pan: Perfect for forming and baking the bars.
• Parchment Paper: Helps with easy removal and prevents sticking.
• Saucepan: Needed for cooking the blueberry filling.
• Wooden Spoon or Spatula: Great for stirring ingredients smoothly.
• Measuring Cups and Spoons: Ensures accurate ingredient proportions.
• Oven Mitts: Protects hands when handling hot baking pan.

How to Bake Blueberry Bars That Crumble Perfectly

• Warm Up the Oven

Get your oven ready by heating it to 350F. Line a baking pan with parchment paper for easy cleanup.

• Create the Crumbly Base

Mix oats, flour, brown sugar, baking powder, cinnamon, and salt in a big bowl. Pour melted butter and stir until the mixture looks like delicious, bumpy crumbs. Press most of this mixture into the pan to form a solid foundation.

• Cook the Blueberry Magic

In a saucepan, toss blueberries with sugar, cornstarch, lemon juice, and vanilla. Heat and stir until the mixture transforms into a thick, glossy sauce. Let it cool down a bit, then spread it evenly over your oat base.

• Top and Bake

Sprinkle the remaining oat mixture over the blueberry layer like a cozy blanket. Slide the pan into the oven and bake until the top turns golden and the edges bubble with excitement, about 30-35 minutes.

Mix-In Ideas for Extra Berry Flavor

• Swap blueberries with raspberries, strawberries, or mixed berries for a delightful flavor twist that keeps the recipe exciting and versatile.
• Use certified gluten-free oats and replace wheat flour with almond flour or gluten-free blend to make this recipe accessible for those with gluten sensitivities.
• Prepare bars up to 3 days in advance and store in an airtight container at room temperature, or freeze for up to one month for convenient snacking.
• Add chopped nuts like almonds or pecans to the crumble topping for extra crunch and nutritional value, creating a more substantial and satisfying treat.
• Substitute butter with coconut oil or vegan butter to transform this recipe into a dairy-free option that doesn't compromise on taste or texture.

Serving These Bars With Yogurt or Cream

• Berry Breakfast Companion: Pair these bars with a smooth Greek yogurt for a protein-packed morning start.
• Afternoon Tea Treat: Serve warm alongside a steaming cup of Earl Grey tea for a delightful midday break.
• Dessert Upgrade: Top each bar with a small scoop of vanilla ice cream or fresh whipped cream for an indulgent twist.
• Picnic Perfect: Pack these bars in a portable container for a sweet outdoor snack that travels well and tastes amazing.

Blueberry Crumble Bar Storage for Snack Time

• Refrigerate bars in an airtight container for up to 5 days, keeping them fresh and delicious.
• Wrap individual bars in plastic wrap, then place in a freezer bag. Store frozen for 2-3 months for quick treats anytime.
• Keep bars at room temperature for 2 days maximum, ensuring optimal taste and texture.
• Cut bars only when completely cooled to prevent crumbling and maintain perfect shape.

Heavenly Blueberry Oatmeal Crumble Bars Recipe

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4.6 from 20 reviews

• Total Time: 45 minutes
• Yield: 13 1x

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Description

Homemade blueberry oatmeal crumble bars deliver sweet summer comfort with layers of buttery oats and juicy berries. Crumbly, golden edges and rich fruit filling make these bars a delightful treat you’ll crave again and again.

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Ingredients

Scale 1x2x3x

• 2 cups blueberries (fresh or frozen)
• 1 ½ cups old-fashioned oats
• 1 ¼ cups all-purpose flour
• ¾ cup unsalted butter (melted)
• ½ cup brown sugar (packed)
• ⅓ cup granulated sugar
• 1 tbsp cornstarch
• ½ tsp baking powder
• ½ tsp cinnamon (optional)
• ¼ tsp salt
• 1 tsp lemon juice
• 1 tsp vanilla extract

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Instructions

1. Crust Composition: Thoroughly blend oats, flour, brown sugar, baking powder, cinnamon, and salt. Incorporate melted butter until a textured, crumbly consistency emerges. Press two-thirds of this mixture firmly into parchment-lined baking pan, creating a robust base.
2. Blueberry Transformation: In a simmering saucepan, unite blueberries, sugar, cornstarch, lemon juice, and vanilla. Gently cook, stirring constantly, until the mixture thickens and develops a glossy, jam-like consistency. Allow brief cooling before spreading evenly across the established crust.
3. Final Assembly & Baking: Lavishly dust the remaining oat mixture over the blueberry layer, ensuring complete coverage. Slide the pan into a preheated 350F (175C) oven and bake until the surface turns a golden amber and the edges bubble with fruity intensity, approximately 30-35 minutes.
4. Cooling & Serving: Remove from oven and let the bars rest, allowing the layers to set and flavors to meld. Once cooled to room temperature, slice into neat squares, revealing the luscious blueberry filling nestled between crisp, buttery oat layers.

Notes

• Use cold butter and mix until the mixture resembles coarse breadcrumbs for a flaky, crisp topping.
• Add cornstarch to prevent excess liquid and ensure a thick, spreadable filling that won’t make the crust soggy.
• Substitute gluten-free flour and oats for a celiac-friendly version, or replace butter with coconut oil for a dairy-free alternative.
• Cover with aluminum foil halfway through baking if the top browns too quickly, ensuring even cooking and a golden-brown finish.

• Prep Time: 10 minutes
• Cook Time: 35 minutes
• Category: Breakfast, Snacks, Desserts
• Method: Baking
• Cuisine: American

Nutrition

• Serving Size: 13
• Calories: 180
• Sugar: 10 g
• Sodium: 120 mg
• Fat: 7 g
• Saturated Fat: 4 g
• Unsaturated Fat: 3 g
• Trans Fat: 0 g
• Carbohydrates: 26 g
• Fiber: 2 g
• Protein: 3 g
• Cholesterol: 20 mg