Super flavorful Oreo Peanut Butter Protein Bars for your next post-workout snack! Easy, healthy, no bake Oreo peanut butter bars use protein powder for sweetness and are low fat, low calorie and gluten free too.

After American Dream Nut Butter came out with their Halloween seasonal Bewitched Peanut Butter (code HAYLSKITCHEN for a discount) – an Oreo flavored peanut butter with crushed Oreo, candy-coated chocolate and sea salt – I had to give something a go with this combination.

The Black Cocoa Oreo flavor combined with the Peanut Butter – a real level up to the classic chocolate peanut butter combination.

Ingredients for Oreo Peanut Butter Protein Bars Recipe:

These Oreo Peanut Butter Protein Bars are made with simple healthy ingredients, and are gluten free, low carb and Vegan too!

The Oreo Base

Chocolate Protein Powder for healthy no bake protein bar that’s also sugar free
I used part whey-casein Chocolate flavor from Quest Nutrition, and part Whey Chocolate from Prozis for this recipe.
Dymatize ISO is another good option for the Whey.
Black Cocoa Powder; I use the one from Weirdo Good.
Oreo-flavored Peanut Butter; I recommend Bewitched Peanut Butter or Double Stuffed & Fluffed Peanut Butter from American Dream Nut Butter (code HAYLSKITCHEN gives you a discount here)
Oat Flour
Coconut Flour
Unsweetened Almond Milk

The Protein Peanut Butter Layer

Peanut Butter
I used American Dream Nut Butter; Code HAYLSKITCHEN gives you a discount.
Peanut Butter Powder, also known as Powdered Peanut Butter. I recommend Lakanto for a sugar free version (the code HAYLSKITCHEN gives you a discount). Or you could use the one from PbFit too.
Vanilla Protein Powder for high protein caramel bar, and also replace the sweetener.
I recommend Whey-Casein from Quest Nutrition for this recipe to keep it sugar free.
Some more Unflavored Protein Powder: Multi-purpose mix from Quest again.
Sugar free Maple Syrup for low calorie protein bar with no sugar!
I use the sugar free monk fruit maple syrup from Lakanto (code HAYLSKITCHEN gets you a discount)
Some Water

The Topping

Oreo Thins

Tips to make Oreo Peanut Butter Squares with Protein Powder

These high protein oreo peanut butter squares are extremely easy to make, with just making one layer at a time. Here’s some tips to get them right!

Use whey-casein and whey protein powder when specified. It works well with the ratio of ingredients here.
Whey-casein absorbs more liquid, and whey absorbs less, so you need to adjust the liquid accordingly.

Add milk or water little at a time when preparing mixtures; Even a little extra will make them too runny.

Mix the dry ingredients well before adding in the wet so you have a smooth mix.

To store No Bake Oreo Peanut Butter Bars

These no bake oreo peanut butter bars need to be stored in the fridge since they have milk in there.

To store homemade oreo cookie peanut butter bars, place in an airtight container in the fridge for up to a 1 week.

To freeze, place healthy oreo peanut butter squares in airtight sealed container, or individually wrapped in plastic wrap and placed in zipper bag; They should keep for 2 or 3 months. Be sure to let them thaw on the counter before eating!

Super flavorful Oreo Peanut Butter Protein Bars for your next post-workout snack! Easy, healthy, no bake peanut butter bars use protein powder for sweetness and are low fat, low calorie and gluten free too.

Alternatives for Healthy Chocolate Butterscotch Bars!

I made these sugar free and gluten free and low fat chocolate butterscotch caramel bars with this particular ingredient list, but here’s some healthy options to choose from.

For the Oreo base:

Oat Flour: Almond flour, or heat-treated flour (don’t forget to heat-treat, raw flour is not good)
Coconut flour: Try using about ⅔ cup of Almond Flour
Oreo-flavored Peanut Butter: Regular peanut butter, or even almond butter
Almond Milk: Regular milk or other non dairy milk

For the Peanut Butter Layer:

Peanut Butter Powder: 4 Tbsp regular peanut butter/almond butter (reduce the water to 1 Tbsp in this case)
Unflavored protein powder: 1½ Tbsp Coconut Flour
Sugar free Maple Syrup: Regular maple syrup or Honey, but they won’t be Vegan or a no sugar recipe anymore.

Also, gluten free chocolate sandwich cookies work fine in place of Oreo thins.

More Homemade Oreo Protein Powder Recipes to try!

Or Peanut Butter Protein Bars