Peanut Butter and Chocolate Protein Bars No Bake GF

No Bake Peanut Butter Chocolate Protein Bars with 11g of protein per bar, made from natural peanut butter, oat flour, protein powder, Greek yogurt, flaxseed, maple syrup, and dark chocolate. These homemade protein bars are chewy, chocolatey, and free from chalky taste and artificial sweeteners—perfect for meal prep or post-workout snacks!

No big peanut butter chocolate protein bars sprinkled with peanuts and drizzled with

You have to try my No Bake Peanut Butter Chocolate Protein Bars that taste just like a peanut butter cup but with simple ingredients and 11 grams of protein per bar! These homemade protein bars are chewy, chocolatey, and perfect for meal prep. They’re way better than store-bought bars without the chalky taste and weird additives.

What sets this recipe apart is the clean, natural ingredients with a satisfying blend of protein, healthy fats, and fiber—everything your body needs without the unnecessary fillers. As someone who loves healthier alternatives, I used to eat commercially made protein bars loaded with artificial sweeteners and too much fiber, but I had to stop when they started causing digestive discomfort. That’s why I created this homemade protein bar recipe, so you can enjoy a delicious, nutritious snack without any of the downsides.

These easy protein bars are made with wholesome ingredients, including oat flour, protein powder, Greek yogurt, ground flaxseed, maple syrup, and coconut oil, and are perfectly balanced with natural peanut butter, dark chocolate, and a protein blend. Whether you need a post-workout snack or an easy protein bar to fuel your day, these will hit the spot!

YouTube video

Why You’ll Love These No-Bake Peanut Butter Chocolate Protein Bars

  • No Bake & Super Easy: Just mix, press, and chill—no oven required!
  • Tastes Like Reese’s: That rich chocolate and creamy peanut butter combo makes these a healthy snack that feels like a treat.
  • 11g of Protein Per Bar: A high protein bar packed with whey protein isolate, almond flour, and flaxseeds.
  • Better Than Store-Bought: No chalky taste—just natural sweetness and a chewy texture.
All the ingredients for baked chocolate peanut butter protein bars.

Ingredients & Substitutions

Here is everything you need to make the best peanut butter and chocolate protein bars:

  • Natural Peanut Butter: The base of these protein bars, packed with healthy fats. Swap with almond butter, cashew butter, or sunflower seed butter.
  • Oat Flour: Provides structure without gluten. You can use store-bought oat flour or grind your own from old-fashioned or quick oats. Substitute with brown rice flour or 3/4 cup of almond flour. You can also use 3-4 tablespoons of coconut flour instead of the oat flour.
  • Vanilla Protein Powder: Use your favorite protein powder, whether whey protein concentrate, soy protein isolate, or a plant-based option. You can replace the protein powder with an equal amount of more oat flour. But you may need to add more sweetener to your liking. This is my favorite organic vanilla protein powder that tastes delicious in this recipe!
  • Maple Syrup: Adds natural sweetness. Swap with honey, agave, or your favorite sweetener.
  • Ground Flaxseed: Provides healthy fats and fiber. Substitute with chia seeds for an extra nutrient boost. You can also omit it and replace with an equal amount of more oat flour.
  • Greek Yogurt: Helps with texture and protein. Use cottage cheese or a dairy-free yogurt alternative.
  • Coconut Oil: Binds everything together and solidifies when cool. Use peanut oil or vegetable glycerin as a substitute.
  • Vanilla Extract: Enhances the natural flavor. Swap with almond extract for a different twist.
  • Sea Salt: Balances the flavors. Any fine salt works here.
  • Dark Chocolate Chips: A rich chocolate protein bar topping for the best flavor. Use unsweetened chocolate, dark chocolate chunks, or a melted chocolate drizzle.
  • Peanuts: Add crunch. Swap with your favorite nuts or skip them altogether.
Peanut butter chocolate protein bars drizzled with chocolate on paper.

How to Make My Protein Chocolate Peanut Butter Bars Recipe

Here are easy, detailed, step-by-step instructions for making my easy protein snacks. The instructions are also repeated in the recipe card at the bottom of this blog post.

Step 1: Mix the Dough

In a food processor or high-speed blender, add 1/3 cup oat flour, 1/2 cup vanilla protein powder, 1/3 cup natural peanut butter, 1/4 cup Greek yogurt, 2 tbsp ground flaxseed, 2 tbsp maple syrup, 1 tbsp melted coconut oil, and 1 tsp vanilla extract and blend until fully combined.

Adding all the ingredients to the food processor.
The ideal consistency for the peanut butter protein bar mixture

Step 2: Press & Set

Line an 8×4-inch loaf pan with parchment paper and press the mixture evenly. Roughly chop 2 tbsp peanuts and sprinkle over the top of the bars. Add 1-2 tbsp mini chocolate chips and press them and the peanuts down into the bars. Store in the freezer while you melt the chocolate drizzle.

Adding the mixed peanut butter protein bar dough into the bread pan.
Pressing the peanut butter bars dough into the prepared bread pan.
The chopped peanuts and mini chocolate chips pressed into the top of the bars.

Step 3: Melt and Drizzle the Chocolate

Add 1/4 cup dark chocolate chips and 1 tsp coconut oil to a microwave safe bowl. If you’re using the Hu Dark Chocolate Baking Gems you do not need to add any coconut oil before melting. Microwave the chocolate in 30-second intervals, stirring in between, until smooth.

Slice the bars and drizzle the melted chocolate over the top. Chill until set and enjoy!

The melted dark chocolate in a glass bowl.
Drizzling melted dark chocolate over peanut butter protein bars.
No big chocolate peanut butter protein bars sliced on a piece of parchment paper

Expert Recipe Tips

Press Firmly: Use a silicone spatula or the back of a spoon to pack the mixture tightly for the best texture.

Coarse Sea Salt: Sprinkle a little coarse sea salt on top of the bars before the melted chocolate hardens.

Customize the Protein: Play around with different protein blends like whey protein isolate or soy protein isolate to match your preference. 

Prevent Crumbly Bars: If using natural peanut butter, make sure it is well-mixed. If needed, add 1 extra tbsp coconut oil if the mixture is too crumbly. Add a little more oat flour if it’s too dry.

Delicious Serving Suggestions

  • Post-Workout Fuel: A high protein bar that’s great for recovery.
  • Afternoon Pick-Me-Up: Satisfy your sweet tooth without the added sugar.
  • Crumbled Over Yogurt: A homemade protein bar topping for Greek yogurt or cottage cheese.
  • Drizzled with Peanut Butter: Enhance the creamy peanut butter flavor.
  • With a Cup of Coffee: The perfect companion to your morning cup.
  • Frozen Treat: Store in the freezer for a cold, chewy texture.
  • Dipped in Dark Chocolate: Make them taste even closer to Reese’s peanut butter cups!

Fridge: Store in an airtight container for up to 1 week.

Freezer: Wrap in plastic wrap and store for up to 3 months. Enjoy frozen for a chewy texture or let thaw for 5 minutes.

Are these peanut butter chocolate bars a good source of protein?
Yes! These homemade protein bars are packed with 11 grams of protein per serving from whey protein isolate, almond flour, and flaxseeds.

Can I make these peanut chocolate protein bars dairy-free?
Absolutely! Swap the Greek yogurt for a dairy-free yogurt and use a plant-based protein blend instead of whey protein concentrate.

What’s the best way to store these bars?
For the best freshness, keep them in an airtight container in the fridge or freeze them individually for easy grab-and-go snacks.

Can I use a different protein powder?
Yes! Use your favorite protein powder, whether it’s milk protein, soy protein isolate, or a plant-based option. This is my favorite organic vanilla protein powder that tastes great in this recipe.

Are these protein snack bars gluten-free?
Yes! They’re made with oat flour and almond flour, making them a great gluten-free option.

Can I double the recipe?
Of course! Just use an 8×8″ pan and press the mixture evenly.

Here are Amazon links to my favorite naturally sweetened protein powders that are very affordably priced:

This post contains affiliate links. As an Amazon Associate, I earn from qualifying purchases at no extra cost to you.

No big peanut butter chocolate protein bars sprinkled with peanuts and drizzled with

Peanut Butter and Chocolate Protein Bars No Bake GF

Gluten-Free diet-friendly recipe
No Bake Peanut Butter Chocolate Protein Bars with 11g of protein per bar, made from natural peanut butter, oat flour, protein powder, Greek yogurt, flaxseed, maple syrup, and dark chocolate. These homemade protein bars are chewy, chocolatey, and free from chalky taste and artificial sweeteners—perfect for meal prep or post-workout snacks!
5 from 4 votes
Servings 6
Prep Time 10 minutes
Total Time 10 minutes

Ingredients
  

Instructions
 

  • In a food processor or high-speed blender, add 1/3 cup oat flour, 1/2 cup vanilla protein powder, 1/3 cup natural peanut butter, 1/4 cup Greek yogurt, 2 tbsp ground flaxseed, 2 tbsp maple syrup, 1 tbsp melted coconut oil, and 1 tsp vanilla extract and blend until fully combined.
  • Line an 8×4-inch loaf pan with parchment paper and press the mixture evenly. Roughly chop 2 tbsp peanuts and sprinkle over the top of the bars. Add 1-2 tbsp mini chocolate chips and press them and the peanuts down into the bars. Store in the freezer while you melt the chocolate drizzle.
  • Add 1/4 cup dark chocolate chips and 1 tsp coconut oil to a microwave safe bowl. If you're using the Hu Dark Chocolate Baking Gems you do not need to add any coconut oil before melting. Microwave the chocolate in 30-second intervals, stirring in between, until smooth.
    Slice the bars and drizzle the melted chocolate over the top. Chill until set and enjoy!

Video

YouTube video

Notes

Press Firmly: Use a silicone spatula or the back of a spoon to pack the mixture tightly for the best texture.
Coarse Sea Salt: Sprinkle a little coarse sea salt on top of the bars before the melted chocolate hardens.
Customize the Protein: Play around with different protein blends like whey protein isolate or soy protein isolate to match your preference. 
Prevent Crumbly Bars: If using natural peanut butter, make sure it is well-mixed. If needed, add 1 extra tbsp coconut oil if the mixture is too crumbly. Add a little more oat flour if it’s too dry.

Nutrition

Serving: 1barCalories: 300kcalCarbohydrates: 21gProtein: 11gFat: 18gSaturated Fat: 7gPolyunsaturated Fat: 1gMonounsaturated Fat: 1gCholesterol: 0.4mgSodium: 237mgPotassium: 280mgFiber: 5gSugar: 13gVitamin A: 0.3IUVitamin C: 0.01mgCalcium: 49mgIron: 3mg
Keyword chocolate, oat flour, peanut butter, protein bar, protein powder, protein snack
Did you make this recipe and love it?Please let me know in the comments below how it turned out 🙂

4 Comments

  1. My family can’t get enough of these bars since I started making them! I hope you enjoy them, too 🙂

5 from 4 votes

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