An amazing Fluffernutter Protein Cookie for one made with marshmallow and peanut butter powder for a healthy recipe. This peanut butter marshmallow protein cookie is gluten free, has no butter and vegan option too.
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Not sure where I came across this peanut butter marshmallow cookie concept, but I totally had to make a high protein version of it.
Oh man what a beauty! This cookie was proper dense and chewy and peanut buttery and marshmallow and all of it!
But of course also healthy and gluten free with protein powder and oat flour and applesauce and Greek yogurt, no sugar or butter!
Ingredients for Fluffernutter Protein Cookie Recipe
This healthy fluffernutter protein cookie recipe with marshmallows has just a few simple ingredients, no butter or oil and no sugar either! A great gluten free protein cookie recipe too.
- Oat Flour – You can make your own by blending rolled oats in a high speed blender
- Vanilla Protein Powder for healthy, whey protein protein cookie that’s also sugar free
I used Quest Nutrition Vanilla Protein Powder. - Unflavored Protein Powder to replace some of the flour (and carbs) in the recipe for a slightly low calorie protein cookie. Quest Nutrition whey-caesin again here.
- 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 or PB2 too.
- Unsweetened Applesauce for a soft sugar cookie without butter
- Non-fat Greek Yogurt contributes to the oil-free part of these protein cookies since it adds the moisture, and also extra protein
- Almond Milk to give the soft cookie a slightly cakey feel, and keep it dairy free.
- Baking Powder
For the marshmallow cookie filling:
- Mini Marhmallows
And optionally,
- Peanut Butter Chips or Butterscotch Chips
Store Peanut Butter Marshmallow Protein Cookie
This peanut butter marshmallow protein cookie recipe is a giant single serve and is best had fresh, but you can store it too.
If you want to store it, keep the gluten free fluffernutter cookie in an airtight container and keep on the countertop for up to 2 days, or fridge 5 days.
To freeze healthy peanut butter marhmallow fluff cookie, place in freezer-safe zipper bag and keep 1-2 months; Don’t forget to thaw before eating!
Alternates for this Single Serve Healthy Fluffernutter Cookie Recipe with Protein Powder
I recommend making this healthy fluffernutter cookie using the protein powder and other ingredients and products listed – since it gives the best results.
If you need other options for the flours and such, here’s some alternatives:
- Oat flour: Use Whole wheat pastry flour or even all purpose flour. A 1:1 Gluten-free all purpose baking flour would work too. Go by the weight for these substitutions.
You can try to use almond flour; I’m a little hesitant about this one, so let me know if you try it. - Unflavored Protein Powder: More flour (also 1 Tbsp)
- Unsweetened Applesauce: Pumpkin Puree or Mashed Banana
- Peanut Butter Powder: 1 tablespoon Peanut Butter, and also use ½ tablespoon Milk instead
- Almond Milk: Regular milk
- Greek Yogurt: Coconut Yogurt
A Vegan Fluffernutter Cookie Recipe with Marshmallows
This single serve peanut butter lava cookie recipe has no eggs and uses almond milk, so can easily be made Vegan too.
For the perfect eggless Vegan peanut butter marshmallow cookie, make sure you use a plant based protein powder, coconut yogurt and vegan marshmallows. There’s some brands that sell these on Amazon.
ProteinWorld has a Vegan protein blend what might work well (HAYLSKITCHEN for the discount here too).
More Single Serve Protein Cookie Recipes to Try:
- Air Fryer Chocolate Protein Cookie
- Protein Sugar Cookie Recipe for One
- Chocolate Protein Cookie in the Microwave
- Chocolate Lava Protein Cookie for One
- Cheesecake Stuffed Red Velvet Protein Cookie
- Biscoff Stuffed Protein Cookie
More Protein Powder Marshmallow Recipes
- Hot Chocolate Protein Balls
- Single S’mores Protein Cookie
- Mexican Hot Chocolate Protein Cookie
- S’mroes Protein Bars
- S’mores Protein Blondies
Fluffernutter Protein Cookie for One
Ingredients
- 3 tablespoon Oat Flour, 17g, see post for subs
- 2 tablespoon Vanilla Protein Powder, Whey-caesin, about 11g
- 1 tablespoon Unflavored Protein Powder, Whey-caesin, 5g
- 1½ tablespoon Peanut Butter Powder, 9g
- ¼ teaspoon Baking Powder
- 2 tablespoon Unsweetened Applesauce, 30g
- 2 tablespoon Non-fat Plain Greek Yogurt, 28g
- 1 tablespoon Unsweetened Almond Milk, 15ml
- ½ tablespoon Creamy Peanut Butter, 8g
- ¼ cup Frozen Mini Marshmallows, 11g, or regular
- Optional: Peanut Butter Chips or Butterscotch chips
Instructions
- Freeze marshmallows for 1-2 hours before using. Keep in freezer until ready to bake.
- Preheat oven to 350°F and line a baking sheet with parchment paper.
- Combine all the dry ingredients in a bowl – oat flour, vanilla protein powder, unflavored protein powder, peanut butter powder and baking powder.
- Add applesauce, Greek yogurt, almond milk, peanut butter and mix.
- Add marshmallows and mix again.
- Transfer cookie mixture onto baking sheet, spread with spoon and shape into 5-6” cookie.Sprinkle on optional pb or butterscotch chips.
- Bake about 12-13 minutes – top should be cooked and dry to touch.Let cool for a few minutes and enjoy!
Notes
- Nutrition value is calculated using products recommended below, and does not include peanut butter chips.
- See post for alternate ingredients, tips and storage options.
- Quest Nutrition Multi-purpose Mix Protein Powder
- Quest Nutrition Vanilla Milkshake Protein Powder
- Lakanto Peanut Butter Powder
- Use code HAYLSKITCHEN for 15% off your order
- Servings: 1 5-6″ cookie | Serving size: 1
- Calories: 280kcal
- Fat: 7.1g | Saturated fat: 0.8g
- Carbohydrates: 32g | Fiber: 4.8g | Sugar: 10.6g
- Protein: 25.1g
Andrea says
Didn’t really turn out well for me, but still decent
Haylee Jane Monteiro says
Oh i’m so sorry. Could it be that you used a whey or plant-based protein powder instead of whey-casein? That might be it!