Imagine the perfect brownie. Warm and fudgy with crispy corners and chunks of melted chocolate. THAT is what you get when you make these flourless sweet potato brownies.
I know sweet potato brownies have already had their shining star moment, but I am not kidding when I say these are THE BEST flourless sweet potato brownies. I am a big fan of sneaking extra fibre into recipes when I can (chickpea blondies, black bean brownies, chickpea cookie dough), so these brownies were inevitable.
They were a labour of love, I spent over 3 years (off and on) testing different variations of this recipe until I was completely happy with it and I can finally say these are perfect. They are everything you look for in a brownie, they have a moist (sorry) gooey center, a slightly crisp top, and they have the perfect amount of melted chocolate.
The true test of any of my recipes is always to get my brothers approval.
My brother is the type of person who if he knows a recipe has something "that shouldn't be in it" that's all he thinks about. So getting him to test some of my "healthier" recipes has been a challenge. What I've learned to do is give him something to try without telling him what's in it. Once he tells me he likes it THEN I will tell him the ingredients.
That's what I did with these brownies. I left them on the counter and told him I made brownies. An hour later he texted me and said he and his friends had eaten almost the entire tray. His friend actually said "these are the best brownies I've ever had." That was the moment I knew that I had a winner.
Sweet Potato- You can't have sweet potato brownies without sweet potato. This is the secret to getting the fudgiest, moist-est (not a word I know), brownies without adding a ton of oil. To make my sweet potato puree I use a fork to pierce holes in a orange sweet potato then microwave for 3 minutes on one side, flip and microwave on the other side for 3 minutes.
Oat Flour- For these flourless sweet potato brownies I used oat flour as a substitute for all purpose flour. I love using oat flour in my recipes for a little extra fibre and whole grains.
Cocoa Powder- For the rich chocolate flavour we all know and love in a good brownie.
Maple Syrup- Maple syrup adds some natural sweetness to these brownies.
Peanut Butter- For these brownies, I use natural peanut butter (look for one with 1 or 2 ingredients like this one ).
In a large bowl combine sweet potato, vanilla, maple syrup, egg, peanut butter and coconut oil
In a separate bowl, combine dry ingredients. Once combined slowly add the dry ingredients to the wet ingredients, stirring well.
Once a batter has formed, add in the mix-ins you have chosen to add (chocolate, walnuts, marshmallows etc.)
Pour batter into a prepared 8x8 baking pan, bake for 22-28 minutes. Once brownies are done, remove from oven, allow to cool and drizzle with melted chocolate if desired.
To make these brownies....
Gluten free: Ensure your oats are certified gluten free (this will depend on where you are located in the world)!
Vegan: Substituting the egg with a flax egg will work just fine (the brownies may just be slightly on the fudgier side (but what's wrong with that?)!
- To make a flax egg: combine 1 tablespoon ground flax seeds with 3 tablespoon warm water and set aside for 15 minutes, until a gel-like consistency forms
Nut free: Substituting the peanut butter with sunflower seed butter will work!
Sugar free: Skip the chocolate chips and use a sugar free maple syrup like this.
Missing an ingredient? Try these:
- Oat flour: Can be subbed with all purpose flour (I have not tested almond flour but I believe it SHOULD work)
- Coconut oil: Butter will work as a substitute
- Maple syrup: Honey will work just fine!
- Peanut butter: Any nut butter can work in these sweet potato brownies! Try almond butter or cashew butter!
The possibilities are endless with these sweet potato brownies! Add chocolate chips, marshmallows, skor pieces, walnuts, raspberries... the choice is yours!
- 8x8 inch square baking pan
- Mixing bowls
- Food processor (to help puree sweet potato) you can also use a potato masher
Store these sweet potato brownies in an airtight container on the counter or in the fridge for up to 1 week.
Store them in the freezer in an airtight container for up to 3 months. To defrost- place a brownie on a plate in the microwave and microwave for about 15 seconds.
Make sure you are mashing the sweet potato until a puree forms to avoid having chunks of sweet potato in your brownies ( a food processor may help with this)!
Frequently Asked Questions
In this case flourless means they do not contain regular all purpose baking flour. This means that these are also gluten-free sweet potato brownies! Rather than using all purpose flour I chose to use oat flour, which you can either buy pre processed OR you can make yourself at home in 5 minutes.
All you need to do is blend an ⅔ + 2 tablespoon oats in a high-powered blender or food processor until the oats have reached a smooth flour-like consistency.
I love using oat flour as an easy way to add more fibre to recipes to help keep you fuller for a longer period of time as well as reducing blood sugar spikes. It's also great because if you use gluten-free oats these brownies are also gluten free!
More Favourite Dessert Recipes
- Salted Caramel Blondies
- Gluten Free + Vegan Sugar Cookies
- No Bake Key Lime Pie Bars
- 3 Ingredient Peanut Butter Blossoms
I love seeing you make my recipes! If you make these flourless sweet potato brownies sure to tag me on Instagram @nourishedbynic or leave a comment here letting me know how it was 🙂
Flourless Sweet Potato Brownies
- 1 cup sweet potato cooked and mashed (about 1 medium sweet potato)
- 2 teaspoon vanilla extract
- ½ cup pure maple syrup
- 1 + ½ tablespoon coconut oil melted
- ¼ cup peanut butter
- 1 egg
- ⅓ cup cocoa powder
- 1 tsp baking powder
- ½ teaspoon salt
- ⅔ cup oat flour
Optional (but highly recommended)
- ½ cup chocolate chips
- ½ cup walnuts chopped
- ½ cup mini marshmallows
- Preheat oven to 350F
- In a large bowl combine sweet potato, vanilla, maple syrup, egg, peanut butter and coconut oil
- In a separate bowl, combine dry ingredients. Once combined slowly add the dry ingredients to the wet ingredients, stirring well.
- Once a batter has formed, add in the mix-ins you have chosen to add (chocolate, walnuts, marshmallows etc.)
- Pour batter into a prepared 8x8 baking pan (I like to add additional mix-ins on top here as well!)
- Bake for about 22-28 minutes or until the top begins to brown and a toothpick inserted into the middle of the brownie pan comes out clean
- Once brownies are done, remove from oven, allow to cool and drizzle with melted chocolate if desired
What variety of sweet potato are you using? The orange basic one, or purple Skinned white Japanese? They have different moisture levels.
orange sweet potatoes! I find they are readily available at all grocery stores so super easy to find 🙂
As a dietician, maybe you can give me some suggestions. What would you suggest as a substitute for peanut butter (beside other nut butters)? And for the egg? My son has food allergies, but I'd love to sneak in more healthy foods (ie sweet potatoes) into his diet. 😆
Thanks in advance!
Hi Amy! Great questions, I'm so glad you are interested in making these. For the egg I would recommend utilizing a flax egg (which can be made by combining 1 tbsp of ground flaxseed with tbsp of warm water) this should help hold the brownies together. For the peanut butter- I have not personally tried this however I find often in recipes that butter, yogurt or applesauce can work as a great substitute for nut butters! If you decide to try please let me know how they turn out 🙂
In response to Nicole Addison, my daughter has a ton of food allergies and I’ve learned a lot of tricks over the years and found great substitutes. If your son can have soy, Wowbutter is a great peanut butter alternative. Sun butter is another one; but I don’t care for the taste as much. Good luck and hope they come out great! I’m planning on making these this week.
This came out amazing! I didn't have enough maple syrup so I added some honey.
Thank you for sharing.
What a great recipe, I’m always looking for ways to increase the nutritional value and I love the sweet potato incorporated into this recipe. It was a BIG hit with the grown ups. I have one very picky grandchild who detected a slight texture from the oat flour (I processed it in the ninja, but apparently not long enough). He’s a whole ‘nother story. But, I’m wondering if I could substitute Almond flour which I have on hand. Would I need to add any additional moisture or egg? Thanks so much! I’ll be making again.
Hi Val I am SO glad the grown ups loved this one!! Yes almond flour will work just as well in these! As almond flour does tend to be a little more absorbent than the oat flour I would recommend adding an additional 2 tbsp of almond flour!
Made these brownies tonight for a gluten-free guest and they turned out beautifully. Lovely fudgy texture and chocolatey flavour, definitely not dry or bland like I'd feared! Thanks so much for the work you did to perfect this recipe, it's a keeper!
Hi Rebecca! I am so glad you enjoyed these!!
Has anyone tried the flax seed egg substitute in this recipe? Does it hold together?
I’m going to try to test them out this week! But if anyone else has tries in the meantime feel free to respond 🙂
We tried this recipe this evening. It's perfect in every way! We didn't have an 8 X 8 but made it in a 9" cake pan. Delicious ! We have printed off the recipe to place in our own favorite cookbook and will be sharing with friends !!!!!
YAY! Thank you so much for sharing Jeff- I love when my recipes make it into the "favourites" cookbook!
These brownies are INSANELY good!!! My chocolate-loving husband couldn’t believe they were made of sweet potato. The texture and taste are both perfection!
This came out amazing! I didn't have enough maple syrup so I added some honey.
Thank you for sharing.
Do these freeze well?
I am so glad you enjoyed! Yes I always freeze my leftovers in an airtight container (they last up to 3 months) and can easily be popped in the microwave for about 20 seconds!
Any idea how much fibre would be in these? I made them in muffin tins (12) and they turned out amazing!
Hi Morgann, wow using a muffin tin is such a great idea for little bite sized brownies! The main sources of fibre in these are the sweet potato and the oat flour, so from those two source alone they would contain about 12 g of fibre!
I've been on the hunt for the perfect brownie recipe and this is it! The fact that it's also gluten free is such a great bonus. I've made this multiple times already and it's been a hit every time. Who would have thought the secret to the perfect brownie would be sweet potato!
Hi Nicole. Can I substitute a gf flour like cup4cup??
Hi Debi- yes for sure!
Very excited to try these, I don’t have oat flour so in order to make it how much should I blend in the blender to equal the desired amount or will it be the same with coconut flour.
I always recommend adding an additional 1/4 cup of oats if you are making your own oat flour! Happy baking!
Could you substitute pumpkin for the sweet potato? Thanks!!
I have never personally tried but I can't see why not! If you decide to try, please let me know how they turn out!
These were amazing!! Everyone loved them and couldn’t believe they were somewhat healthy. My kids had no clue these where made using sweet potato and gobbled them up. I had just finished a cleanse and wanted a treat without all the guilt and these were perfect!
Is there nutritional information for these in terms of sugars, calories etc?
I am so glad you enjoyed these!! I have been slowly updated all my old recipes to include nutrition information and you just reminded me to add it to these- so you can now find it at the bottom of the recipe card!