Name: Blueberry Pie Bars
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: American
Ingredients: 1 1/2 cups all purpose flour; 1 cup rolled oats; 1/2 cup granulated sugar; 1/4 teaspoon salt; 3/4 cup vegan butter (melted); 4 cups fresh blueberries; 1/2 cup granulated sugar; 2 tablespoons cornstarch (or tapioca starch, arrowroot); 2 teaspoons fresh lemon zest (optional)

Why You’ll Love Blueberry Pie Bars Recipe

These bars are easier than making a full pie but still have that classic blueberry pie flavor. They’re vegan-friendly, great for sharing, and perfect for dessert, snacks, potlucks, or summer gatherings.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

1 1/2 cups all purpose flour
1 cup rolled oats
1/2 cup granulated sugar
1/4 teaspoon salt
3/4 cup vegan butter, melted
4 cups fresh blueberries
1/2 cup granulated sugar
2 tablespoons cornstarch
2 teaspoons fresh lemon zest, optional

Directions

Preheat the oven to 350 degrees F. Line a 9-inch square pan with parchment paper, leaving overhang for easy removal.

In a large bowl, mix the flour, oats, sugar, and salt. Add melted vegan butter and stir until crumbly.

Set aside 1 cup of the crumb mixture for the topping.

Press the remaining mixture firmly into the prepared pan. Bake for 10 minutes, then remove from the oven.

In a saucepan, combine blueberries, sugar, cornstarch, and lemon zest. Cook over medium heat for 5 to 8 minutes, stirring until slightly thickened.

Pour the blueberry filling over the crust. Sprinkle the reserved crumble mixture on top.

Bake for 35 to 40 minutes, until lightly golden and bubbling around the edges.

Cool for at least 20 minutes before lifting from the pan and slicing into bars.

Servings and timing

Servings: 12 bars
Total time: 1 hour
Bake time: 45 to 50 minutes
Cooling time: at least 20 minutes

Variations

Use frozen blueberries instead of fresh, but do not thaw them first.

Add a little cinnamon to the crumble for a warmer flavor.

Swap lemon zest for orange zest for a sweeter citrus note.

Use tapioca starch or arrowroot instead of cornstarch.

Storage/Reheating

Store leftover bars covered in the refrigerator for up to 1 week.

To freeze, place cooled bars in an airtight container and freeze for up to 3 months.

To reheat, warm individual bars in the microwave for a few seconds, or enjoy them chilled.

FAQs

Can I use frozen blueberries?

Yes. Use them straight from frozen and cook the filling until thickened.

Do I need to peel the blueberries?

No, blueberries do not need to be peeled.

Can I make these bars gluten-free?

Yes, use a gluten-free all-purpose flour blend and certified gluten-free oats.

Can I use regular butter?

Yes, if you do not need the recipe to be vegan.

Why is my filling runny?

It may need more cooking time or more cooling time before slicing.

Can I reduce the sugar?

Yes, but reducing it too much may make the filling less sweet and slightly more tart.

Do these bars need to cool before slicing?

Yes. Cooling helps the filling set and makes cleaner slices.

Can I make these ahead of time?

Yes, they are great made a day in advance.

Can I use other berries?

Yes, raspberries, blackberries, or mixed berries can work well.

Are these bars vegan?

Yes, as long as you use vegan butter.

Conclusion

Blueberry Pie Bars are a simple, delicious way to enjoy the flavor of blueberry pie without making a full pie crust. With a buttery oat crumble and juicy blueberry filling, they’re easy to make, easy to slice, and perfect for sharing.