Ahh, protein bars. Usually the ones you see at the store are LOADED with carbs. If they’re “low carb” bars (I use the term lightly), they’re in turn loaded with sugar alcohols, cheating your way to a low carb count…I mean, come on…24g carbs, and 20g sugar alcohols for a 4 net carb bar? Are they serious? Here I will provide you with an honest to goodness low carb protein bar. This is a modified recipe from Healthy Indulgences.


Krys’ Low Carb Peanut Butter Protein Bars


  • 1/2 cup total peanut butter
  • 4 tablespoons total salted butter
  • 4 tablespoons total heavy cream
  • 1/4 teaspoon total liquid stevia
  • 4 teaspoons total Da Vinci Sugar Free Vanilla syrup
  • 1/2 teaspoon vanilla extract
  • 1/2 cup vanilla or unflavored protein powder (I use Optimum Nutrition Vanilla Ice Cream powder, carb count using plain will be slightly lower)

If you are missing any of the needed ingredients, check out “Hand Picked Items” in my links. I have organized the products I use frequently in an Amazon shop by category for you. All items other than the gadgets were hand picked by me ;) There were just too many gadgets I love to add them one by one.

Preparation for the bars:

In a microwave safe bowl, add 1/4 cup peanut butter, 2 tablespoons of butter, 1/8 teaspoon of liquid stevia, and 2 teaspoons of Da Vinci syrup. Make sure your butter is in smallish pieces so that it will melt completely. Microwave for 1 minute, or until butter is completely melted and peanut butter is nice and soft.

Once done, mix contents together thoroughly. Once nice and mixed, add in the 1/2 teaspoon vanilla extract, 2 tablespoons of heavy cream, and mix.

Once combined, add in the 1/2 cup of protein powder of your choice. Be mindful of the carb counts on protein powders. Some are very high, and some are low carb. The Optimum Nutrition products I use are low carb. The Vanilla Ice Cream powder has 3g carbs per serving (which is roughly 1/3 cup). The unflavored protein powder, called Any Whey, has just 1g carbs per serving. I’ve made it with both powders, and the flavor is a little better using vanilla if you have it.

Mix the contents of your bowl until a thick dough forms. Now, it may “leak” a little oil. That’s ok. If you added in too much butter, it will do this. Or, if your peanut butter is a little oily, it will do this. Or, it might even do it just because it darn well feels like it. Either way, it’s fine. :)

Once together, grab a cookie sheet and a piece of parchment paper. If you don’t have any, that’s ok…but everything is better with parchment!

Spoon the dough into 4 bar shaped pieces.

See – they’re a little weepy. But that’s ok. It happens to the best of us, clearly ;)

Bake at 350 degrees for about 10 minutes, or until the edges/bottoms are just starting to brown.

Preparation for the topping:

Are you ready? Once your bars are out of the oven, do everything you just did above, except for adding in the protein powder :) This will make your topping! Easy, huh?

Spoon your topping over the warm bars, and smooth. Place in the fridge immediately to set. If you’re super impatient and want to try one straight away, place the bars in the freezer for 10 minutes, then transfer to the fridge.

Nutritional Information (per bar)

  • Carbs: 6.4 grams, or 4.4 grams net
  • Protein: 17 g
  • Fat: 33.5 g
  • Fiber: 2 g
  • Calories: 354

5 Responses to “Krys’ Low Carb Peanut Butter Protein Bars”

  1. mirinblue Says:

    OMG-I am SOOO making these this weekend! I think I will use almond butter and see how they turn out!

  2. Krystal Says:

    Be sure to report back! I’ve never worked with almond butter (I’m not a huge fan of almonds unless it’s almond flour…) but I bet it would come out just as good. Instead of vanilla, maybe try a half teaspoon of almond extract if you have that on hand! :)

  3. Kristan Says:

    I made these the other day but with chocolate protein powder! Yummy!

  4. Krystal Says:

    I haven’t tried anything with chocolate yet…I’ve been meaning to get some!

  5. algts Says:

    I have made them with almond butter (we have peanut allergy in the family) and they are wonderful (wish I could try the peanut, too). Next, I want to try them with macadamia nut butter.