The BEST Protein Bars are healthy, no-bake, and contain nothing artificial! These are chewy, delicious, easy to customize, and are the perfect healthy snack.

Looking for more healthy snacks? Try my Energy Balls, Applesauce, Carrot Muffins, or learn how to make The Perfect Charcuterie Board.

Homemade protein bars made with oats and peanut butter.

Why I love this recipe:

No Bake – No heating up the house, and only takes 10 minutes to throw the ingredients together and put in the fridge.

Healthy – Nothing artificial here. These bars are filled with normal pantry ingredients and sweetened with honey.

Taste Delicious – I’ve had one to many unappetizing protein bars in my life, so I’m all about making them from scratch, with ingredients I recognize, and they taste wonderful!

Ingredients in Protein Bars:

  • Rolled Oats – quick oats would also work.
  • Protein Powder – Add your favorite whey or plant based protein powder including Chocolate, vanilla, or plain flavored.
  • Peanut Butter – or substitute any nut butter or sunflower butter.
  • Honey – Naturally sweetened and no added sugar. You could substitute agave.
  • Ground Flax Seed
  • Banana – mashed, for sweetness flavor and binding.
  • Salt
  • Vanilla Extract
  • Mix-Ins – I like to customize my bars with chopped dates, dried fruit (blueberries, cranberries, or raisins), mini chocolate chips, or unsweetened coconut flakes.
Labeled ingredients needed to make Protein Bars.

How to make Protein Bars:

Combine Ingredients: Mix all ingredients in a large mixing bowl. Press into an 11×7 inch pan (or similar size -you could use a 9×13 pan, but not press them all the way to one side).

Protein Bar ingredients mixed together in a bowl.

Refrigerate: Place pan in refrigerator for at least 1 hour before cutting into bars.

A pan with chilled protein bar mixture pressed into it, ready to cut into bars.

Cut Bars: Before cutting, press them down and together tightly. Cut into bars and store in an airtight container at room temperature or in the fridge.

Freezing Instructions:

Layer bars in a freezer safe bag or container, with a piece of parchment paper between layers, and freeze for up to 3 months. Thaw in the refrigerator or on the counter before eating.

Recipe Variations:

  • Mix-Ins: Customize these bars with your favorite mix-ins! Some ideas: chopped dates, dried fruit (blueberries, cranberries, or raisins), mini chocolate chips, unsweetened coconut flakes, crispy rice cereal, chopped nuts, or anything you like!
  • Nut Butter: Swap out the peanut butter for almond butter, cashew butter, or sunflower butter.
  • Protein Powder: Use your favorite kind. Chocolate, vanilla, or plain would all work great for this recipe!
  • Vegan Protein Bars Recipe: Use your favorite vegan protein powder.

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Recipe

Homemade protein bars.
Prep 10 mins
Refrigerate 1 hr
Total 1 hr 10 mins

Ingredients
 
 

  • 1 3/4 cups old-fashioned rolled oats
  • 3/4 cup peanut butter , or favorite nut butter or sunflower butter
  • 1 banana , mashed
  • 1/3 cup honey , agave or real maple syrup
  • Pinch salt
  • ½ cup ground flax seed
  • 1 cup protein powder*
  • 2 teaspoons vanilla extract
  • 3/4 cup Mix in options: chopped dates, dried fruit (blueberries, cranberries, or raisins), mini chocolate chips, unsweetened coconut flakes, nuts

Instructions
 

  • Mix all ingredients until well combined. Press into an 11×7 inch pan (or similar size—you could use a 9×13 pan, but not press them all the way to one side). Refrigerate for at least 1 hour before cutting into bars.
  • Before cutting, press them down and together tightly. Store bars in an airtight container in the fridge for up to 2 weeks.

Notes

Freezing Instructions: Layer bars in a freezer safe bag or container, with a piece of parchment paper between layers, and freeze for up to 3 months. Thaw in the refrigerator or on the counter before eating.
Protein Powder: Use your favorite kind. Chocolate, vanilla, or plain would all work great for this recipe, or try half protein powder and half unflavored collagen peptides.
Chocolate Protein Bars: Use chocolate protein powder. 
Nut Butter: Swap out the peanut butter for almond butter, cashew butter, or sunflower butter.
Vegan Protein Bars Recipe: Use your favorite vegan protein powder.

Nutrition

Calories: 238kcalCarbohydrates: 28gProtein: 13gFat: 10gSaturated Fat: 2gPolyunsaturated Fat: 4gMonounsaturated Fat: 3gCholesterol: 18mgSodium: 113mgPotassium: 283mgFiber: 4gSugar: 11gVitamin A: 6IUVitamin C: 1mgCalcium: 76mgIron: 1mg

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About The Author

Lauren Allen

Welcome! I’m Lauren, a mom of four and lover of good food. Here you’ll find easy recipes and weeknight meal ideas made with real ingredients, with step-by-step photos and videos.

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  1. 5 stars
    Love these! It seems we always have a batch on hand. The kids love them and they’re great for snacks, to take on the go, etc.

  2. 5 stars
    Lauren, I plan to make these using PB fit peanut butter powder mixed with water. It is 87% less fat than regular peanut butter. Do you ever use baking stevia or monk fruit?

    1. Would love to hear how your bars come out! Lauren doesn’t normally use stevia or monk fruit but it should work great for you. Enjoy the bars!

  3. This recipe looks delicious & so easy. I plan on trying it! It looks like I have all the ingredients except the protein powder!