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Homemade Protein Bars (Peanut Butter)

by Christine | Food | 02.21.25

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4.85 from 58 votes

This is my go-to Homemade Protein Bars recipe! Made with a 4-ingredient protein bar base and a melted chocolate topping, these peanut butter protein bars are SO good. I love that they have 15 grams of protein and are the best healthy snack for busy days! If you’re looking to save money by meal prepping and making your own protein bars at home, you’ll love how this recipe tastes like a peanut butter chocolate treat.

Across photo of stacked Homemade Peanut Butter Protein Bars recipe.

DIY Protein Bars

If you’re a protein bar fanatic like I am, then you may relate to my obsession with these Homemade Peanut Butter Protein Bars. I have been on the ultimate search for the perfect protein bar, and while I’ve found a few wonderful store-bought options, I LOVE this homemade version!

These Homemade Protein Bars are my go-to for a healthy, higher protein snack. They’re easy to make, easy to store, can help save money, and are great for staying full longer! They also taste like a delicious, indulgent treat. Make these peanut butter bars in 10 minutes or less, freeze to set, and enjoy for weeks to come! Here’s why you’ll love them:

  • 15 Grams Protein – Use your favorite protein powder!
  • 10 Minutes – That’s it! These only take 10 minutes to prep.
  • Meal-Prep Friendly – Make a big batch of these protein bars and store them in the fridge healthy snacks whenever you need one.
  • Saves Money – Protein bars can be so expensive at the store. This homemade version can help save money!
  • Better Than Store-Bought! Truly. The chocolatey peanut butter flavor of these homemade protein bars is SO good and tastes like dessert.

RELATED: The 6 BEST Protein Bars for Women

Angled photo of a stack of Homemade Peanut Butter Protein Bars.

Table of Contents

Peanut Butter Protein Bar Ingredients

You’ll only need 4 ingredients for the base and 2 ingredients for the chocolate topping. That’s it! Here’s what you’ll need to make the best protein bars:

  • Peanut Butter – Classic creamy peanut butter is the best option for these protein bars. However, almond butter or any type of mixed nut butter works great!
  • Vanilla Protein – Plant-based vanilla protein powder or whey vanilla protein powder both work wonderfully in this recipe.
  • Almond Flour – Ground almonds, or almond flour, add nutrition and texture to these bars. Other great options include PB2 or more protein powder!
  • Maple Syrup – Maple syrup adds the right amount of sweetness to this recipe. Honey or agave syrup also work great!
  • Chocolate Chips – Vegan chocolate chips or dark chocolate chips take these peanut butter protein bars to another level.
  • Coconut Oil – A touch of coconut oil mixed with the melted chocolate chips create a delicious chocolate glaze topping!

TIP: Add a little bit of flaky sea salt or chopped pistachios on top for an extra crunch!

Ingredients in easy peanut butter protein bars recipe.

How to Make Peanut Butter Protein Bars

I love how easy these Homemade Protein Bars are to make! I’ve been making them for YEARS, and they’re still my go-to for higher protein snacks throughout the week. All you’ll need is a large mixing bowl, an 8×8″ baking pan, and 10 minutes to get started!

Note: This recipe has been updated since the creation of this video! While I loved it before, I think the bars have a much better structure to them now. The concept in the video is still the same, but I know that you will enjoy the new and improved taste of these Homemade Protein Bars as much as I do!

Here’s how to make Homemade Protein Bars (peanut butter or any type of nut butter):

  1. Combine peanut butter, protein powder, almond flour, and maple syrup.
  2. Pour into a square baking pan.
  3. Mix melted chocolate chips with coconut oil.
  4. Drizzle or pour over the peanut butter mixture.
  5. Freeze and cut into bars!

You’ll Also Love: Iced High Protein Coffee

4 ingredients in a large bowl for homemade protein bars.
Peanut butter protein bar dough being mixed.
Peanut butter protein bar mixture pressed into pan.
Sliced peanut butter chocolate protein bars.
Angled photo of peanut butter protein bars with chocolate.

Protein Bar Recipe Variations

How to Make Peanut Butter Protein Bars without Peanut Butter?

You can make peanut butter protein bars with any type of nut butter. Almond butter, cashew butter, or a mixed nut butter are all great options!

The Best Types of Protein Powder to Use

My personal favorite plant-based protein powders to use in homemade protein bars are Truvani (so many great flavors and minimal ingredients) and Orgain Vanilla. However, there are so many amazing options out there!

CHECK THIS OUT: The 5 Best Vegan Protein Powders (Honest Review)

How to Make Homemade Protein Bars without Protein Powder?

While these protein bars are definitely best made with protein powder, there are still ways around this. Another option would be to use PB2 powder instead of protein powder!

Chocolate Chips vs. Chocolate Glaze

This recipe calls for a chocolate glaze made from chocolate chips and a little bit of coconut oil. However, another option would be to simply omit the coconut oil and mix the chocolate chips into the peanut butter protein bar “batter”, then freeze. This can help save on calories as well as save time!

Homemade Peanut Butter Protein Bars on parchment paper.

Topping Ideas for Chocolate Peanut Butter Protein Bars

Want to take these protein bars up a notch? Sprinkle or drizzle a fun topping on them! Here are some ideas:

Storing Homemade Protein Bars

It’s best to store Homemade Peanut Butter Protein Bars in the refrigerator until you’re ready to enjoy! Keep them in an airtight container in the fridge for up to 2 weeks or in the freezer for up to 3 months.

Stack of Homemade Peanut Butter Protein Bars.

More Homemade Protein Bar Recipes

Healthy Protein Snacks

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Across photo of stacked Homemade Peanut Butter Protein Bars recipe.
4.85 from 58 votes
Print Recipe

Chocolate Peanut Butter Protein Bars

This is my go-to Homemade Protein Bars recipe! Made with a 4-ingredient protein bar base and a melted chocolate topping, these peanut butter protein bars are SO good. I love that they have 15 grams of protein and are the best healthy snack for busy days! If you're looking to save money by meal prepping and making your own protein bars at home, you'll love how this recipe tastes like a peanut butter chocolate treat.
Course: Snack
Cuisine: American
Diet: Gluten Free, Vegan, Vegetarian
Prep Time: 10 minutes
Total Time: 10 minutes
Servings: 16 Bars
Calories: 287 kcal
Author: Christine McMichael

Equipment

Ingredients

Homemade Protein Bars

Topping Ideas (optional)

Instructions

  • Mix the peanut butter, protein powder, almond flour, and syrup together in a mixing bowl.
  • Pour the mixture into an 8×8" baking pan lined with parchment paper.
  • Melt the chocolate chips and coconut oil together for about 30-45 seconds, stirring often, until smooth.
  • Spread the chocolate mixture over the bars and add any toppings.
  • Freeze for about 15-20 minutes to set.
  • Slice into 16 bars and enjoy! 

Notes

  • It’s best to store Homemade Peanut Butter Protein Bars in the refrigerator until you’re ready to enjoy! Keep them in an airtight container for up to 2 weeks in the fridge or frozen for up to 3 months.

Nutrition

Serving: 1 Bar | Calories: 287 kcal | Carbohydrates: 20 g | Protein: 15 g | Fat: 18 g | Saturated Fat: 5 g | Polyunsaturated Fat: 3 g | Monounsaturated Fat: 6 g | Cholesterol: 17 mg | Sodium: 21 mg | Potassium: 196 mg | Fiber: 2 g | Sugar: 14 g | Vitamin A: 27 IU | Calcium: 78 mg | Iron: 2 mg
Tried this Recipe? Tag me Today!Mention @jar.of.lemons or tag #JarOfLemons!

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4.85 from 58 votes (46 ratings without comment)

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Rating




56 Comments

  1. Laura says:

    Yes, a thousand times YES! I love everything about these! Your photos are beautiful and I could {I mean I do} eat chocolate and peanut butter all day every day! I have some of my favorite protein powder on hand just ready to be used for this recipe!

    Reply

  3. Simon says:

    These looks ridiculously delicious; I can smell them through the screen. I’m looking forward to making these myself. I’ll let you know how it goes.

    Reply

  4. Janine Good says:

    These look delicious. The fact that they are high in protein makes them a little less sinful to eat 😉 Thanks for sharing this! I have saved this to try!

    Reply

  7. Jolina - The Unlikely Baker says:

    Love lazy and easy recipes! This looks so delicious. I’d probably eat this as a dessert (seeing that I hardly work out haha – must change that). And it just so happens we have all the ingredients – even the tahini! Might just make this very soon 🙂

    Reply

  10. Katrin CA says:

    5 stars
    I love this. I’m always looking for protein stacked desserts. Really nice pictures as well. Makes my mouth watery.

    Reply

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