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square image of a blueberry pie bar with oatmeal crumb topping, bite taken out of it on a speckled plate
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5 stars (5 ratings)

Blueberry Pie Bars

These vegan blueberry pie bars are so easy to make with an oatmeal crumble and blueberry pie filling. The crust doubles as the topping!
Prep Time15 minutes
Cook Time45 minutes
Total Time1 hour
Course: Dessert
Cuisine: American
Servings: 12 bars
Calories: 262kcal
Author: Nora Taylor


Crust + Topping

Blueberry Pie Filling

  • 4 cups fresh blueberries see notes for frozen
  • 1/2 cup granulated sugar
  • 2 tablespoons cornstarch or tapioca starch, arrowroot
  • 2 teaspoons fresh lemon zest optional


  • Preheat the oven to 350 degrees F and line a 9 inch square pan (8 inch will work as well) with parchment paper, leaving some overhang for easy removal later. Set aside.
  • In a large bowl, stir together the flour, rolled oats, sugar and salt. Add the melted butter and stir until the mixture is moist crumbs.
  • Set aside 1 cup of the crumbs in a bowl for the topping.
  • Press the rest of the crumbs into the prepared pan and press firmly and evenly. Bake for 10 minutes, then remove from the oven and set aside.
  • Meanwhile, make the blueberry filling. Place the blueberries, sugar, cornstarch and lemon zest in a medium saucepan. Turn the heat to medium heat and stir, simmering for about 5-8 minutes until the mixture thickens a bit.
  • Pour the blueberry mixture over the crust evenly. Sprinkle the crumble topping all over the filling.
  • Bake for 35-40 minutes, until the top is lightly browned and the blueberry filling is bubbling around the edges.
  • Allow the bars to cool for at least 20 minutes before lifting out of the pan with the parchment paper. Slice into squares and enjoy.
  • Store leftover bars covered in the refrigerator for up to 1 week. They can also be frozen.


  1. If needed, use frozen blueberries. The filling will be more runny though. You could also just substitute a jar of blueberry jam.
  2. May use coconut oil instead of vegan butter.


Serving: 1of 12 bars | Calories: 262kcal | Carbohydrates: 41g | Protein: 3g | Fat: 10g | Saturated Fat: 2g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 4g | Sodium: 141mg | Potassium: 83mg | Fiber: 2g | Sugar: 22g | Vitamin A: 566IU | Vitamin C: 5mg | Calcium: 9mg | Iron: 1mg