Hi, I’m Sam from dishfoody.com, where wholesome breakfasts and snacks come together with simple ingredients. These Blueberry Oatmeal Bars are soft yet chewy with a buttery oatmeal crust and juicy fresh blueberry filling, topped with a crunchy crumble. Perfect for meal prep, brunch, or an anytime snack your family will love.
Vegan and gluten-free adaptable, they come together quickly and bake in under an hour.
Why This Recipe Works
- Oatmeal in the crust and topping adds heartiness and fiber
- Fresh blueberries mixed with lemon juice and cornstarch create a natural, jammy filling
- The same crumb mixture for crust and topping simplifies prep
- Balanced sweetness with butter and brown sugar for depth
- Bars hold together well, easy to slice and serve
Ingredients & Prep
- 2 cups rolled oats
- 1½ cups all-purpose or gluten-free flour
- ¾ cup light brown sugar
- 1 teaspoon cinnamon
- ½ teaspoon salt
- 6 tablespoons unsalted butter, melted
- 2 cups fresh blueberries
- 2 tablespoons lemon juice
- 1 tablespoon cornstarch
- 2 tablespoons granulated sugar
- Zest of 1 lemon
Step-by-Step Instructions

- Preheat oven to 350°F (175°C). Line an 8×8-inch pan with parchment paper.
- In a large bowl, combine oats, flour, brown sugar, cinnamon, and salt. Stir in melted butter until mixture is crumbly. Set aside ⅓ for topping.
- Press remaining ⅔ firmly into the bottom of the pan for the crust.
- In a medium bowl, mix blueberries, lemon juice, cornstarch, granulated sugar, and lemon zest. Spread evenly over crust.
- Sprinkle reserved crumb mixture over blueberries and press lightly.
- Bake 38-40 minutes until golden and bubbly. Cool completely before slicing.
Flavor Variations
| Variation | Key Ingredient | Dietary Tag | Flavor Profile |
|---|---|---|---|
| Blueberry Almond | Sliced almonds | Nutty | Crunchy, rich |
| Maple Pecan | Maple syrup & chopped pecans | Sweet & nutty | Warm, toasty |
| Mixed Berry | Add raspberries and blackberries | Fruity | Tart-sweet blend |
| Lemon Glaze | Powdered sugar glaze | Bright & sweet | Citrusy finish |
Storage Tips
Store bars in an airtight container at room temperature for up to 4 days or in the fridge for a week. They freeze well for up to 2 months; thaw before serving.
FAQs
Can I use frozen blueberries? Yes, but thaw and drain excess juice before using.
Can I reduce sugar? Slightly reduce sugar; bars will be less sweet but still tasty.
Gluten-free option? Use certified gluten-free oats and flour.
Conclusion
Blueberry Oatmeal Bars are a tasty, wholesome way to enjoy fresh berries anytime. Easy prep with pantry staples makes them a go-to treat or breakfast on the run. Find more filling, delicious recipes at dishfoody.com.
PrintBlueberry Oatmeal Bars Recipe
Chewy Blueberry Oatmeal Bars with buttery oatmeal crumble crust, juicy blueberry filling, and cinnamon crumble topping. Perfect breakfast bars, snack, or healthy dessert everyone loves.
- Prep Time: 10 mins
- Cook Time: 45 mins
- Total Time: 55 mins
- Yield: 16 bars 1x
- Category: Breakfast, Dessert
- Method: Baked
- Cuisine: American
- Diet: Vegetarian
Ingredients
- For the crust & crumble:
- 1 1/2 cups old-fashioned rolled oats
- 1 cup all-purpose flour
- 1/2 cup brown sugar
- 1/2 teaspoon cinnamon
- 1/4 teaspoon salt
- 1/2 cup unsalted butter, melted
- Blueberry filling:
- 2 cups fresh blueberries
- 1/4 cup granulated sugar
- 2 tablespoons lemon juice
- 1 tablespoon cornstarch
Instructions
- 1. Preheat oven to 350°F (175°C). Line 8×8-inch pan with parchment paper.
- 2. Mix oats, flour, brown sugar, cinnamon, and salt. Stir in melted butter until crumbly.
- 3. Reserve 3/4 cup crumble for topping. Press remaining into bottom of pan.
- 4. Toss blueberries with sugar, lemon juice, and cornstarch. Spread over crust.
- 5. Sprinkle reserved crumble over blueberries.
- 6. Bake 40-45 minutes until golden and bubbly. Cool completely before cutting.
Notes
- Use frozen blueberries if fresh unavailable.
- Chill before cutting for cleaner slices.
- Perfect for breakfast on-the-go or snack.
- Store airtight up to 5 days or freeze.
Nutrition
- Serving Size: 1 bar
- Calories: 180
- Sugar: 12g
- Sodium: 80mg
- Fat: 8g
- Saturated Fat: 4g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 25g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 15mg
Keywords: blueberry oatmeal bars, breakfast bars, healthy oatmeal bars

