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    Home » Recipes » Pies and Tarts

    Healthy Blueberry Pie (Easy)

    Published: Jul 29, 2022 · Modified: Apr 17, 2025 by Crystal Yentzen · This post may contain affiliate links · 13 Comments

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    This healthy blueberry pie is so easy to make, even for a beginner baker. It's made with a no-roll, oat flour pie crust, fresh or frozen blueberries, and a simple crumb topping that's absolutely delicious. You won't believe it's good for you!

    Healthy Blueberry Pie (Easy)

    There is something magical about making a pie from scratch. It's one of my favorite desserts to make. And even if you've never made a pie before, you can make this healthy blueberry pie.

    The recipe starts with an easy oat flour pie crust. There is no need to roll it out. You simply press the dough into the pie plate, similar to a graham cracker crust.

    Instead of a top crust, we use a simple crumb topping that's made with oat flour. It couldn't get easier!

    Plus, you need only a few wholesome ingredients that you may already have at home. What do you need?

    Jump to:
    • Ingredients
    • How to make Healthy Blueberry Pie
    • Want more healthy dessert recipes?
    • 📖 Recipe
    • 💬 Comments

    Ingredients

    What's great about this recipe is that you use most of the same ingredients for the crust and crumb topping. Here's what you'll need:

    • Blueberries-  I used fresh blueberries, but frozen blueberries will too. For frozen blueberries, place them in a colander and rinse them under cold water until the water runs almost clear. Strain them thoroughly, and pat them dry. You want them damp but not wet. 
    • Oat Flour– Oat flour is sold in stores, but it's also super easy to make at home. Simply blend old-fashioned oats in a high-speed blender until the oats become a fine powder (about 30 seconds to a minute). Store your oat flour in an air-tight container for up to three months. 
    • Granulated Sweetener of Choice- You can use coconut sugar, regular granulated sugar, or a sugar-free granulated sweetener such as monk fruit, which is what I used. Other great options are granulated erythritol or Truvia. Please note that granulated erythritol is about 70 percent as sweet as sugar, so may need to add a little more according to your preference. Also, some sweeteners call for only half the amount of sugar, so always read the labels. 
    • Cornstarch- I use a touch of cornstarch along with oat flour to thicken the blueberry filling.
    • Cinnamon- Cinnamon is optional, but I highly recommend it for the crumb topping. You can add it to the pie crust too if you'd like.
    • Salt- Any fine grain salt works great.
    • Egg- You'll need one large egg for the pie crust.
    • Olive Oil- I love using olive oil for its health benefits. But you can substitute canola or vegetable oil if that's what you have on hand.
    • Lemon Juice- You'll need two tablespoons of fresh lemon juice for the blueberry filling.

    A side shot of healthy blueberry pie

    How to make Healthy Blueberry Pie

    This recipe is easy to follow, but ensure you have enough time because the pie bakes for over an hour.

    Prepare the pie crust

    Oat flour pie crust
    • Whisk together the oat flour, sugar, and salt in a large bowl. In a medium-sized bowl, whisk together the eggs and olive oil.
    • Pour the wet into the dry and mix together with a large spoon until everything comes together and you can form a ball. Press the dough into the bottom of the pie plate and up the sides. Be sure to press evenly on the bottom to work the excess crust up the sides. Set aside.

    Prepare the blueberry filling

    blueberry pie filling
    • Rinse and drain the blueberries thoroughly. You want them slightly damp but not wet. Place the blueberries in a large bowl and pour over the lemon juice. Gently mix to combine.
    • In a medium-sized bowl, whisk together the granulated sweetener of choice, oat flour, cornstarch, and cinnamon. Pour the mixture into the bowl of blueberries and gently mix until everything is thoroughly combined.
    • Pour the blueberry mixture into the prepared pie crust and spread it evenly over the crust.

    Prepare the crumb topping

    healthy blueberry pie before being baked with crumb topping
    • In a medium-sized bowl, whisk together the oat flour, granulated sweetener, and cinnamon. Pour the olive oil into the bowl and mix to combine.
    • Using your hands, sprinkle the crumb topping evenly over the blueberries.

    Full instructions are in the recipe box below.

    overhead shot of healthy blueberry pie

    Want more healthy dessert recipes?

    Check these out:

    Kiwi Cake with Light Cream Cheese Frosting

    The best low-calorie blueberry muffins

    Light Strawberry Cheesecake Parfaits (Vegan)

    Healthy Lemon Cake

    Quinoa Chocolate Cupcakes with Peanut Butter Glaze

    Chocolate Oat Flour Cake

    Oatmeal Ginger Cookies

    Healthy Key Lime Pie

    a slice of healthy blueberry pie

    Please let me know how you like the Healthy Blueberry Pie in the comments! I love to hear from you and your star ratings encourage others to give the recipe a try.

    Enjoy!

    Crystal

    📖 Recipe

    Healthy Blueberry Pie (Easy)
    Print Recipe
    4.50 from 20 votes

    Healthy Blueberry Pie (Easy)

    This healthy blueberry pie is so easy to make, even for a beginner baker. It's made with a no-roll, oat flour pie crust, fresh or frozen blueberries, and a simple crumb topping that's absolutely delicious. You won't believe it's good for you!
    Prep Time25 minutes mins
    Cook Time1 hour hr 20 minutes mins
    Total Time1 hour hr 40 minutes mins
    Course: Dessert
    Cuisine: American
    Keyword: Blueberry, glutenfree, oats
    Servings: 8
    Calories: 303kcal
    Author: Crystal Yentzen

    Ingredients

    Crust

    • 1 and ½ cups oat flour*
    • 1 tablespoon granulated sweetener of choice* see notes
    • ½ teaspoon salt
    • 1 large egg
    • ¼ cup olive oil you can substitute canola or vegetable oil

    Filling

    • 5 and ½ cups fresh blueberries* see notes for frozen
    • 2 tablespoons lemon juice
    • ⅔ cups granulated sweetener of choice* see notes
    • 2 tablespoons oat flour
    • 2 tablespoons cornstarch
    • ½ teaspoon cinnamon

    Crumb Topping

    • ½ cup oat flour
    • ⅓ cup granulated sweetener of choice*
    • ½ teaspoon cinnamon
    • 2 and ½ tablespoon olive oil

    Instructions

    Prepare the pie crust

    • Preheat the oven to 415°F and position the rack in the center of the oven.
    • Whisk together the oat flour, sugar, and salt in a large bowl. In a medium-sized bowl, whisk together the eggs and olive oil.
    • Pour the wet into the dry and mix together with a large spoon until everything comes together and you can form a ball. Press the dough into the bottom of a 9-inch pie plate and up the sides. Be sure to press evenly on the bottom to work the excess crust up the sides. Set aside.

    Prepare the filling.

    • Rinse and drain the blueberries thoroughly. You want them slightly damp but not wet. Place the blueberries in a large bowl and pour over the lemon juice. Gently mix to combine.
    • In a medium-sized bowl, whisk together the granulated sweetener of choice, oat flour, cornstarch, and cinnamon. Pour the mixture into the bowl of blueberries and gently mix until everything is thoroughly combined.
    • Pour the blueberry mixture into the pie crust and spread it evenly over the crust.

    Prepare the crumb topping

    • In a medium-sized bowl, whisk together the oat flour, granulated sweetener, and cinnamon. Pour the olive oil into the bowl and mix to combine.
    • Using your hands, sprinkle the crumb topping evenly over the blueberries.

    Bake

    • Place the pie on a baking sheet and transfer the baking sheet and pie to the preheated oven. Bake at 415°F for 20 minutes. Reduce the heat to 375°F, cover the pie loosely with a piece of aluminum foil, and continue baking for 60-75 minutes or until the filling is bubbling throughout.
    • Transfer the pie to a cooling rack and allow it to cool so that the filling will set.
    • Enjoy!

    Notes

    1. Oat Flour– Oat flour is sold in stores, but it’s also super easy to make at home. Simply blend old-fashioned oats in a high-speed blender until the oats become a fine powder (about 30 seconds to a minute). Store your oat flour in an air-tight container for up to three months. 
    2. Granulated Sugar of Choice- You can use coconut sugar, regular granulated sugar, or a sugar-free granulated sweetener such as monk fruit, which I used. Other great options are granulated erythritol or Truvia. Please note that granulated erythritol is about 70 percent as sweet as sugar, so you may need to add more per your preference. Also, some sweeteners call for only half the amount of sugar, so always read the labels. 
    3. Blueberries- I used fresh blueberries, but frozen blueberries will too. For frozen blueberries, place them in a colander and rinse them under cold water until the water runs almost clear. Strain them thoroughly, and pat them dry. You want them damp but not wet. 
    4. Store your healthy blueberry pie covered at room temperature for up to three days or in the refrigerator for up to a week. 

    Nutrition

    Calories: 303kcal | Carbohydrates: 38g | Protein: 6g | Fat: 15g | Saturated Fat: 2g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 9g | Trans Fat: 0.003g | Cholesterol: 23mg | Sodium: 162mg | Potassium: 209mg | Fiber: 5g | Sugar: 10g | Vitamin A: 90IU | Vitamin C: 11mg | Calcium: 30mg | Iron: 2mg

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    Reader Interactions

    Comments

    1. Kat says

      August 01, 2022 at 3:40 pm

      5 stars
      This was perfect for using up some blueberries that needed eating, and easy to make too!

      Reply
    2. Giangi says

      August 01, 2022 at 10:20 pm

      5 stars
      Looks amazing. Printed to make it this coming weekend.

      Reply
    3. Nancy says

      August 02, 2022 at 2:36 am

      5 stars
      This blueberry pie is amazing

      Reply
      • Crystal Yentzen says

        August 14, 2022 at 10:05 pm

        I'm so happy you like it!

        Reply
    4. Ava says

      September 07, 2022 at 11:26 pm

      5 stars
      so delicious! hit with the kids!

      Reply
    5. Amy M says

      April 02, 2023 at 2:28 am

      5 stars
      I have made this recipe several times and it always comes out amazing. I recently made it with 4 cups peaches and 1 cup blueberries and it was devoured. I substituted white rice flour for the cornstarch and oat bran for oat flour. Still comes out great. What a terrific recipe!

      Reply
      • Crystal Yentzen says

        April 02, 2023 at 12:56 pm

        Thank you so much for commenting! I love when someone enjoys my recipes, and the peach and blueberry combo sounds amazing!

        Reply
    6. Adam says

      September 15, 2023 at 7:39 am

      Have tried this recipe with blueberries,
      cherries and apples, making slight adaptations for each fruit. They have been equally great, recipe is a real winner as is or with slight changes. Very wholesome ingredients as well.

      Reply
      • Crystal Yentzen says

        September 15, 2023 at 2:01 pm

        Cherries sound amazing! I'll have to try that. I'm so happy you like the recipe, and thanks for commenting!

        Reply
    7. Kelly says

      February 09, 2024 at 5:25 pm

      5 stars
      I used straps on the crust instead of crumbles. amazingly delicious!!!!

      Reply
      • Crystal Yentzen says

        February 15, 2024 at 8:43 pm

        I'm so happy you like it and thanks so much for commenting!

        Reply
    8. T says

      March 30, 2025 at 11:09 pm

      5 stars
      Love this recipe! I have made blueberry pie apple pie,and today peach pie we love it! thank you for sharing recipes

      Reply
      • Crystal Yentzen says

        April 04, 2025 at 2:32 pm

        That makes me so happy! Thank you for commenting!

        Crystal

        Reply
    4.50 from 20 votes (13 ratings without comment)

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