Homemade S’mores Protein Bars with graham crackers and toasted marshmallows too! These marshmallow protein bars use protein powder instead of sugar and are an easy s’mores inspired protein dessert.

Fun fact! I actually did the shoot for these homemade protein bars at 8pm! I really needed something for my breakfast treat the next morning, and it was getting pretty late.

I really was hoping the lighting would be good enough to get the toasted marshmallows in these protein bars to show up. Thankfully they did, and did well! I was so proud!

Ingredients for S’mores Protein Bars

These S’mores protein bars are made with clean and healthy ingredients like oat flour and protein powder, but also have graham crackers and marshmallow as you’d want in a S’mores bar!

Here’s all you need:

The Graham Cracker Protein Bar Base:

Plain or Honey Graham Crackers or Biscuits for the slight crunch (use gluten free if you need)
Oat Flour – You can make your own by blending rolled oats in a high speed blender
Vanilla Protein Powder for high protein s’mores bar, and also replace some of the sweetener.
I used Quest vanilla.
S’mores flavor Cashew Butter – I recommend the one from American Dream Nut Butter (discount code HAYLSKITCHEN) – it’s low carb, low sugar, high protein and delicious!
Sugar free Maple Syrup – Lakanto is the one I recommend! (code HAYLSKITCHEN will give you a discount)

The Chocolate Protein Bar Layer

Chocolate Protein Powder: I use the one from Quest!
Unsweetened Cocoa Powder
More S’mores flavor Cashew Butter – The one from American Dream Nut Butter (disocunt code HAYLSKITCHEN)
Water

For the S’mores effect:

Mini Marshmallows!

Tips for perfect Smores Protein Bars

This Smores protein bar recipe is really easy to make; Just mix and go, but here’s some tips to get it right.

Use fine oat flour not oats. You won’t get a smooth protein bar in this case.

Add liquid (maple syrup and water) only a little at a time or the mixture will be too runny.

Mix the ingredients well before pressing down layers so you have a smooth texture

Press down firm and even; You want the bars to hold well.

Broil the marshmallows, don’t bake! They will get too soft.
Also keep an eye on the broiling so they don’t burn.

To store Marshmallow Protein Bars

To store homemade marshmallow protein bars, let baked protein bars cool, then place in a sealed airtight container. Store on counter for 1 day or the fridge for 3-4 days.

To freeze, place healthy marshmallow bars 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!

Alternatives for Healthy S’mores Bars with Protein Powder

I made these high protein sugar free s’mores bars with the ingredient list above, but here’s some options to choose from.

Oat Flour: Use Almond Flour; The same amount in cups
Chocolate Protein Powder: Use a Vanilla (the flavor might be less dark here)
Graham Crackers: Any cracker, or biscuit
Sugar-free Maple Syrup: Use regular maple syrup!
S’mores Cashew Butter: Just plain cashew butter, almond butter or even tahini work here. I would not recommend peanut butter due to the strong flavor.

Vegan S’mores Protein Bar Recipe

Since there’s no milk, these S’mores inspired protein bars can easily be made Vegan with the right ingredients.

Use a plant based protein powder and Vegan marshmallows for this recipe to get a healthy Vegan S’mores bar.

More S’mores Protein Dessert Recipes:

More Protein Bars Recipes: