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Peanut Butter Oatmeal Protein Bars – No Bake + Vegan

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4.92 from 295 votes
By Carine - - 12 Comments

Peanut Butter Oatmeal Protein Bars – an easy clean eating recipe for a homemade protein bar, no-bake required, and only 6 ingredients.

All you need to make those no-bake protein bars is 10 minutes!  These are perfect for boosting your protein intake and make a great fulfilling sweet snack in the afternoon.

I personally eat them before my morning run or before going to the gym. You know I love running and this is the kind of food that helps me run longer.

Peanut Butter Oatmeal Protein Bars: my semi-marathon food fuel

I was really proud to finish the Auckland half marathon last month in 2h27 minutes. It was a huge challenge after three years of a sugar-free life.

I have never been a huge sportive girl before, but now I can not live a day without sport. I often look at the protein bars at the store, and I found them really expensive and sometimes a bit too sweet as I am not used to eating very sweet food anymore.

Peanut Butter Oatmeal Protein Bars an easy clean eating protein bar with only 5 ingredients. Healthy, no bake, vegan.

That is how I started to make my own running food lately. I simply developed my recipes following the ingredient listed on a commercial bar I was used to eating.

Mainly, a protein bar is always made of nuts and protein powder to boost protein intake.

Those oatmeal protein bars are made with 6 simple ingredients 100% vegan:

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  • Peanut butter
  • Brown rice syrup – you can use maple syrup instead by I prefer brown rice syrup as it is less sweet and release slower in my body after sport.
  • Rolled Oats and Jumbo Oats – I used a combo of jumbo size oat and rolled oats to add some texture to my bars.
  • Vegan Dark Chocolate Chips – optional, but I love it!
  • Vegan pea protein – I used a vanilla one to add some extra flavor.

Peanut Butter Oatmeal Protein Bars an easy clean eating protein bar with only 5 ingredients. Healthy, no bake, vegan.


Then some cereal is usually rolled oat because it makes a perfect base to boost complex carbs before running. Finally, sweeteners are most of the time brown rice syrup as it contains less sugar than honey. Peanut Butter Oatmeal Protein Bars an easy clean eating protein bar with only 5 ingredients. Healthy, no bake, vegan.

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You can, of course, flavor your bars with anything else you like. Here I topped my bars with chocolate chips. There is sugar in those chips, but this is ok when I am running as my body needs some fuel.

The texture of these bars is chewy, with a lovely coconut flavor and bites of oats all around the bar. It is not too sweet but very fulfilling. I made 9 bars with this recipe.

Peanut Butter Oatmeal Protein Bars an easy clean eating protein bar with only 5 ingredients. Healthy, no bake, vegan.

If you enjoy running food recipe simply leave me a comment below, and I will share more of my running creation next time 🙂

Peanut Butter Oatmeal Protein Bars an easy clean eating protein bar with only 5 ingredients. Healthy, no bake, vegan.


Watch the recipe video and make those No-Bake Oatmeal Protein Bars now!

Recipe Card

Peanut Butter Oatmeal Protein Bars

Peanut Butter Oatmeal Protein Bars an easy clean eating protein bar with only 5 ingredients. Healthy, no bake, vegan.
33.2gNet Carbs
4.92 from 295 votes
Prep Time: 10 mins
Total Time: 10 mins
Net Carbs 33.2g
Fat 13.3g
Protein 10g
Calories 293kcal
Author: Carine Claudepierre
10 bars
Peanut Butter Oatmeal Protein Bars, an easy clean eating protein bar with only 5 ingredients. Healthy, no bake, vegan.

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Net Carbs
4.92 from 295 votes
Review Print


  • ¾ cup Natural Peanut butter
  • ½ cup Brown Rice Syrup or honey or maple syrup
  • ¼ cup Unsweetened Almond Milk or milk of your choice
  • 1 cup Rolled oats
  • 1 ⅓ cup Jumbo oats
  • 1 tablespoon vanilla pea protein powder Vegan
  • ¼ cup Sugar-free Chocolate Chips + 1/4 cup to decorate - optional
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  • In a saucepan, under medium heat, warm the peanut butter, sweetener and milk until liquid and smooth - about 1 minute maximum. Stir to prevent the mixture from burning. Set aside.
  • In a large mixing bowl, combine rolled oat, jumbo oats, protein powder and chocolate chips.
  • Stir in the lukewarm peanut butter mixture until it forms a dough. The chips will melt, that's what you want.
  • Transfer the batter in a square brownie pan covered with parchment paper
  • Press the batter with the back of a spoon or a spatula to spread evenly into the pan.
  • Top with 1/4 cup extra chocolate chips if you like, or pumpkin seeds, or sliced almonds. Press with your hands to incorporate them into the bars.
  • Refrigerate one hour or freeze 30 minutes to firm-up quickly.
  • Cut into 10 bars.
  • Store in the fridge in an airtight box up to 3 weeks. You can also store them in the pantry, the texture will be softer.
Dark chocolate chips replacement: feel free to use sliced almonds or dried cranberries or coconut thread as a low sugar replacement. 
Sweetener: any liquid sweetener works in this recipe. I used brown rice syrup as it has a less sweet taste and contains fewer carbs - better for a fitness fuel. Feel free to replace with honey or maple syrup.
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Nutrition Facts
Peanut Butter Oatmeal Protein Bars
Amount Per Serving (1 protein bar)
Calories 293 Calories from Fat 120
% Daily Value*
Fat 13.3g20%
Carbohydrates 37.4g12%
Fiber 4.2g18%
Sugar 14.3g16%
Protein 10g20%
Net Carbs 33.2g
* Percent Daily Values are based on a 2000 calorie diet.

Peanut Butter Oatmeal Protein Bars an easy clean eating protein bar with only 5 ingredients. Healthy, no bake, vegan.

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    12 thoughts on Peanut Butter Oatmeal Protein Bars – No Bake + Vegan
  1. 5 stars
    Hello, would it be possible to swap the oats for quinoa? Or would that not keep well? If so how much quinoa would you say to use? Thank you

  2. Hi,
    I don’t have access to pea protein. What else could I use as a substitute? I live in Tanzania.
    Thank you

    • Hi Melissa, that is totally fine! The recipe would work perfectly without it, the bars might be a bit softer. Otherwise use a tablespoon of any other protein powder you can find or either coconut flour ! Enjoy the bars. XOXO Carine

  3. 5 stars
    Hi Again thanks for reply, one more question,,, so for the 10 bars its 10g per bar,,, with one tbl pwoder thats 15g for recipe…is the remainder of protein coming from the peanut butter thanks nigel ….they are very good by the way, my chocolate melted abit much but looked good

    • Yes! There is the full nutrition panel available just after the recipe card, scroll down a bit more and you can see it. I am so happy you enjoyed the bars! XOXO Carine.

  4. Hi, I was wondering for the protein powder…..How many grams of protein are in the pea pwoder….Is it 100grams for the 1 tablespoon Thanks..Actually i just made recipe, if left in fridge are they still quite soft thanks Nigel

    • I am using this protein pea powder – it contains 20 g protein per serve (2 tbsp/30g). Those bar are no bake bars so they stay quote soft anyway. They should harden slightly in the fridge tho. Enjoy the recipe on the blog! XOXO Carine.

  5. 5 stars
    Hi! I would like to make these, but I don’t have any brown rice syrup. Could I make these with maple syrup instead? Thanks 🙂

    • Hi Michelle, Sure you can! Any liquid sweetener will work. I love using brown rice syrup but maple syrup, honey or agave will work as well. Enjoy the recipe ! Thanks for reading the blog and testing my recipes! xoxo Carine.


The recipes, instructions, and articles on this website should not be taken or used as medical advice. You must consult with your doctor before starting on a keto or low-carb diet. The nutritional data provided on Sweetashoney is to be used as indicative only. The nutrition data is calculated using WP Recipe Maker. Net Carbs is calculated by removing the fiber and some sweeteners from the total Carbohydrates. As an example, a recipe with 10 grams of Carbs per 100 grams that contains 3 grams of erythritol and 5 grams of fiber will have a net carbs content of 2 grams. Some sweeteners are excluded because they are not metabolized. You should always calculate the nutritional data yourself instead of relying on Sweetashoney's data. Sweetashoney and its recipes and articles are not intended to cure, prevent, diagnose, or treat any disease. Sweetashoney cannot be liable for adverse reactions or any other outcome resulting from the use of recipes or advice found on the Website.

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