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Blueberry-Oat Bars

July 15, 2008 By Susan Voisin 114 Comments
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These delicious Blueberry Oat Bars are full of the flavor of fresh blueberries but contain no refined flour, oil, or white sugar.
Blueberry-Oat Bars

Sometimes I really miss living in the country. When I was growing up, acquiring fresh blueberries was just a matter of walking outside and picking them from one of the bushes in our yard.

Getting my blueberry fix these days takes a little more effort. For the past few summers, E and I have visited a local U-pick blueberry farm where we’d spend an hour or so in the sun and come home with a couple of gallons of blueberries, some to be eaten immediately and most to be frozen for later.

Well, this year “our” U-pick farm has gone out of business, and we haven’t succeeded in finding another. So we’ve had to make do with the next best thing: organically grown blueberries from the local natural foods store. When I saw them there a few days ago, I just had to pick up a pint; even though the cost was several times what I’d pay to pick my own, blueberries are such a part of summer to me that I couldn’t pass them up.

Blueberry-Oat Bars

Besides, I really needed them to make these bars, which I’d been craving for a few weeks. You won’t believe how healthy they are: no refined flour, no white sugar, no added fat, no soy, and no gluten*. They’re not super-sweet, but they’re full of fresh fruity taste.

Blueberry-Oat Bars
5 from 10 votes
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Blueberry-Oat Bars

If you prefer a sweeter bar, add more agave nectar, sugar, stevia, or your favorite sweetener to the blueberries as they are cooking. Or add a sugar glaze on top by mixing a little vegan powdered sugar with water until it’s the right consistency for drizzling.
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings 16
Author Susan Voisin

Ingredients

  • 1 pint blueberries
  • 1/4 cup agave nectar , maple syrup, or other liquid sweetener
  • 1/4 cup apple juice
  • 1/2 teaspoon vanilla
  • 2 tablespoons cornstarch mixed with enough water or juice to form a smooth paste
  • 3 cups rolled oats (regular, not instant)*
  • 1/2 teaspoon cinnamon
  • 1 1/2 teaspoons baking powder
  • 1/4 teaspoon salt
  • 6 ounces unsweetened applesauce
  • 6 tablespoons agave nectar or other sweetener (3/8 cup)
  • 6 tablespoons water (3/8 cup)
  • 1 teaspoon vanilla
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Instructions

  • Preheat oven to 375F. Oil an 8×8-inch baking dish or line it with parchment paper.
  • In a small saucepan, combine the blueberries, 1/4 cup agave nectar, and juice. Bring to a boil over medium-high heat. When it boils, stir in the vanilla and the cornstarch mixture. Continue to stir as the mixture boils and thickens. Remove from heat and set aside.
  • Put 1 1/2 cups of the oatmeal into a blender and grind it to a fine powder. Pour it into a medium-sized mixing bowl and add the remaining oatmeal, cinnamon, baking powder, and salt. Mix well. Stir in the apple sauce, remaining agave nectar, water, and vanilla, and mix well.
  • Spread half of the batter into the prepared pan, smoothing well to cover the bottom of the pan. Spoon the blueberry filling over the batter, and cover the blueberries with the remaining batter.
  • Bake for 30 minutes, or until the top is lightly browned. Allow to cool before cutting into bars.

Notes

*Use gluten-free oats to make these gluten-free.
Nutrition Facts
Blueberry-Oat Bars
Amount Per Serving (1 bar)
Calories 117 Calories from Fat 9
% Daily Value*
Fat 1g2%
Sodium 81mg4%
Carbohydrates 26g9%
Fiber 2g8%
Protein 3g6%
* Percent Daily Values are based on a 2000 calorie diet.

Nutritional info is approximate.

Course Breakfast, Dessert
Cuisine Vegan
Have you made this recipe?Mention @SusanFFVK and tag #fatfreevegankitchen in your photos on Instagram.
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These delicious, vegan Blueberry Oat Bars are full of the flavor of fresh blueberries but contain no refined flour, oil, or white sugar.

Filed Under: Desserts, Recipes, Snacks Tagged With: Gluten-free

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Reader Interactions

Comments

  1. Allison

    April 10, 2011 at 7:37 am

    These turned out really good! I was thinking of maybe adding a little lemon next time..what do you think? For some reason, I feel like that might be good. Then again, I never reeeally know what I’m doing in the kitchen so maybe that’s just a ridiculous thought, haha. Either way, I’ll definitely make these again!

    Reply
  2. heidi kellner

    May 15, 2011 at 12:16 pm

    These are in the oven now – after making the orange/chocolate fat-free bundt cake for dinner last night, we are on a fatfreevegan.com roll. We used blackberries and blueberries and didn’t quite have enough fruit paste to spread around so a just mashed up rasberries into the empty spots and then when we put the topping on we smashed alternating rows of rasberries/blackberries across the top in a checkerboard pattern and put one blueberry in the middle of each square – my family loves the extra fruit and we can’t wait for these to come out of the oven. Thanks so much for your recipes – who would have ever thought you can make such yummy treats without the butter or eggs!

    Reply
  3. Fern

    May 21, 2011 at 6:36 am

    I made these last week using fresh from the farm strawberries. They were delicious. My husband has requested I make these again. This week we are trying the blueberries.

    Reply
  4. Karen

    June 29, 2011 at 1:35 pm

    I use babyfood in these in place of the applesauce — any sweet kind on hand — WE LOVE THESE BARS!!!

    Reply
  5. Crystal

    July 10, 2011 at 8:14 pm

    Hi Susan!
    I absolutely loved this blueberry bars. I fixed them for a family gathering and my aunt asked me to make them again. I was wondering if you use the same amount of stevia as you would agave nectar in the recipe…
    Thanks

    Reply
    • SusanV

      July 11, 2011 at 9:29 am

      I’m so glad you liked them! If you use stevia, you’ll need a lot less because it’s so concentrated. I would just add it to taste. Good luck!

      Reply
  6. Louisa

    July 24, 2011 at 4:21 pm

    Dear Susan

    I live in England and love your site! Applesauce isnt very each to get over here. Do you know what I could use instead?

    Thanks

    Louisa

    Reply
    • SusanV

      July 25, 2011 at 4:04 pm

      If you can get vegan yogurt, vanilla or plain could replace the applesauce.

      Reply
  7. Gabriele

    July 24, 2011 at 4:47 pm

    Hi Susan,
    recipe looks yummy!! Wondering if I could use rasberries instead of blueberries?

    Reply
    • SusanV

      July 25, 2011 at 4:04 pm

      Sure! I just used cherries, and they came out great!

      Reply
  8. Lauren

    August 11, 2011 at 9:40 am

    These look delicious! I was looking for a treat to bring to friends of mine who are gluten free and sugar free – this looks perfect! I never have juice in the house, though. What would be a good substitute for the apple juice?

    Reply
    • SusanV

      August 11, 2011 at 10:06 am

      The apple juice just adds sweetness and moisture, so you could replace it with water with a little agave nectar or other sweetener. Hope you enjoy!

      Reply
  9. Allyne

    November 8, 2011 at 11:31 am

    I just baked them last night, and they were very tasty! Although I did have some trouble with the batter…. this could have been because i only had quick oats on hand. And I guess i put more than half on the bottom, because i did not have a full layer on top (the blueberry’s were popping thru). The end result was tasty, but a bid glopy…..perhaps from my quick oats.

    Reply
  10. Pierre

    December 18, 2011 at 9:44 am

    Susan, i’m allergic to the cornstarch is there anything i can replace it?

    Reply
    • Susan Voisin

      December 18, 2011 at 11:12 am

      Potato starch should work just as well.

      Reply
  11. Nadia

    January 7, 2012 at 7:03 pm

    This recipe is amazing. I made the bars today and even my 2 year old loved it. I used frozen blueberries and frozen mango chunks from Trader Joe’s; I didn’t have fresh blueberries. My whole family including me is enjoying it.
    Thank you!

    Reply
  12. Courtney

    February 10, 2012 at 12:23 am

    Could you use chia seeds as a different sort of thickener instead of the corn starch?

    Reply
    • Susan Voisin

      February 10, 2012 at 7:21 am

      I haven’t tried it, but my sense is that it wouldn’t hold together as well.

      Reply
  13. AVBear

    March 1, 2012 at 1:36 pm

    Has anyone tried these with frozen blueberries? Should I thaw them first? And if I use frozen do you think I need to compensate by adding more cornstarch? Thank you! 🙂

    Reply
    • Susan Voisin

      March 1, 2012 at 1:40 pm

      Yes, measure them first and then thaw them. If it looks like the blueberry mixture won’t be thick enough you can add more corn starch, but it may not be necessary.

      Reply
      • AVBear

        March 12, 2012 at 8:42 am

        Thanks! I made these as suggested, though I honestly didn’t wait for them to thaw before I cooked them. Extra corn starch was unnecessary. They turned out beautifully and were REALLY yummy! 🙂 Definitely a keeper recipe. Thank you!

        Reply
  14. kelly

    April 10, 2012 at 6:30 pm

    Love the blueberry oat bars (and many other recipes from your site). I have been trying to veganize and ‘healthy-up’ the classic fruit and oat bar recipes from other sites, but with minimal success. I am trying to use up the last of my home-made blackberry and blueberry jams from last year prior to this season, so I used that as the filling. Thanks for the great site!

    Reply
  15. Mariette Costin

    June 20, 2012 at 6:47 pm

    Great recipe!!!
    Can someone answer one question? Agave nectar is not a powder is it? I don’t have any, by what fluid sweetener may I replace it?

    Thank you for answering!

    Reply
    • Susan Voisin

      June 20, 2012 at 9:49 pm

      Agave nectar is a liquid. If you can’t find it, the best substitute would be maple syrup.

      Reply
  16. debbie stevenson

    July 27, 2012 at 2:15 pm

    what can be used in place of agave. I dont use that stuff. date syrup? dates? and how much?
    thanks

    Reply
    • Susan Voisin

      July 27, 2012 at 2:48 pm

      You can use an equal amount of date syrup or any liquid sweetener. A half cup of chopped dates would probably work in the filling.

      Reply
  17. Katherine

    July 27, 2012 at 2:34 pm

    These bars look delicious! I’ll be trying them with fresh, Quebec blueberries. My daughter (a new vegan but life-long vegetarian) and I (long-time veggie) have tried and Pinned many of your recipes. It’s always fun to add something new to our list of favorites.
    I have noticed that you often list oatmeal as one of the ingredients. I believe you mean oats, right (rolled, steel-cut or quick)? I know, picky, picky! It’s an occupational hazard for an editor!

    Reply
  18. Heidi

    July 27, 2012 at 7:46 pm

    Sounds delicious and may just work for this vegan, flour-free, gluten-free, sugar-free house. BUT has anyone tried this with no added sweetners of any kind? Blueberries and juice are sweet enough on their own perhaps to make this work without agave.

    Reply
  19. Esther

    July 27, 2012 at 8:11 pm

    These taste and smell wonderful! I use real maple syrup instead of agave and frozen berries. They turned out so well!!

    Reply
  20. Lindsey

    December 27, 2012 at 4:27 pm

    Dear Susan-
    Your website is absolutely amazing. I’ve tried several recipes and I LOVE all of them. These bars are DELICIOUS. For years I have struggled with weight, food and eating a healthy diet. Your website has shown me you can eat delicious and healthy foods at the same time! Please.. please… please continue the great work!!!

    Your new friend,
    Lindsey

    Reply
  21. Angela

    January 31, 2013 at 6:29 pm

    Just made these today!! I was very pleased with the results, and they were super easy to make!! They had a nice texture and they were just sweet enough without being too sweet. Thanks for the great recipe!!

    Reply
  22. Will

    August 29, 2013 at 1:22 pm

    A little tricky to spread the top layer with the warm blueberry mix below it…maybe I should have them completely cool? My oat mixture was a bit thick as I used steel oats didn’t have any rolled oats, just quick ones. Still should be yummy though it’s baking right now!

    Reply
  23. Lakshmi

    September 10, 2013 at 8:22 am

    Hi Susan,
    Can I use quick cooking oats as I don’t have the regular oats? Will the calories increase if I use dates syrup/maple syrup?
    Lakshmi

    Reply
    • Susan Voisin

      September 10, 2013 at 8:38 am

      Quick oats will work fine, and I don’t think the type of syrup will affect the calories much.

      Reply
  24. Sophie

    January 8, 2014 at 8:47 pm

    Hi! I found your recipe for Blueberry Oat Bars today on Pinterest and I made them tonite. Oh my goodness, they are a hit! My husband & 2 girls LOVE them so much. We eat a high starch lowfat vegan diet (McDougall) and this recipe is simply amazing and fits in so perfectly with our meal planning. Thank you so much! We’re huge fans. 🙂

    Reply
  25. lasassafras

    February 8, 2014 at 8:28 pm

    OMG just made these and I absolutely love them! SO DELICIOUS!
    I used frozen blueberries, and didn’t have any juice, so I used homemade yogurt..anyway- the filling is blueberry pie-esque and oh so tasty. I had some issues with the batter topping- as the bottom you can shape by pressing in to the pan; so I used a rolling pin to try and get the shape of my pan and placed it on top. So not nearly as pretty as the picture- but dang is it good! 10/10!!

    Reply
  26. Janet ZDichavsky

    March 5, 2014 at 2:34 pm

    Hi Susan,

    I would like to post your Blueberry Oat Squares recipe and picture on my face book page and of course credit you for it. Wondering if that would be ok.

    Janetzdichavsky Rncp Rohp
    janethealth.com

    Reply
    • Susan Voisin

      March 5, 2014 at 2:47 pm

      Janet, I am happy for you to post the photo and a LINK to the recipe here on my blog, but please do not post the recipe. I would like people to come here to get the recipe. Thanks for asking!

      Reply
  27. Debbie Scharmen

    July 16, 2014 at 10:10 am

    Applesauce is so easy to make. Just take apples and a little water and put it into your blender. You can add cinnamon if you want. Fresh applesauce without cooking!! Works perfectly in recipes or to just eat right out of the blender!!! Can’t wait to try the blueberry bars…

    Reply
  28. miri

    July 16, 2014 at 11:08 am

    I was thinking to sub the agave with stevia . And to use 2 cups of oats and 1 cup od almond meal. . This will be gluten free, sugar free and fat free !!

    Reply
  29. Diane

    July 19, 2014 at 5:41 pm

    I had no oats for oat flour and used coconut flour. Epic fail 🙁 The batter never turned moist no matter how much apple juice I tried to add. I am guessing 3 cups of oats- before grinding is less than 3 cups of regular flour. I am going to try again with the correct ingredient.

    Reply
  30. Sharon

    January 23, 2015 at 4:30 pm

    Here it is, 2015 ansd we are still raving about your oatmeal bars! Love them, probably too much. We usually eat them rather fast around here. Ok, I doubled the recipe last night and I was wondering how best to store these. Left them out last night, ate a few more, cut them into bars but now I think I should put them in the frige and maybe even the freezer. How long can I keep them? Thanks so much for your super fine recipes!!

    Reply
    • Susan Voisin

      June 24, 2016 at 9:44 am

      I would put them in the fridge for up to a week and the freezer for longer than that. I’m so glad you like them so much!

      Reply
  31. Ruth

    June 25, 2016 at 7:07 am

    How much oat flour should I use if I don’t grind the recommended 1 1/2 cup oat So?

    Reply
    • SuperSel

      June 26, 2016 at 3:32 am

      Try using 1.5 cups. If you’re nervous, start with 1 cup, then see if it needs more. You can make it to your liking! Worked for me!

      Reply
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