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Home > Blog > Protein Desserts > Protein Cookies

Lemon Protein Cookies

Updated: Jan 5, 2026 · Published: Jan 23, 2015 · By Andréa Marchese · This post may contain affiliate links · 8 Comments

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stack of lemon protein cookies, with text overlay.
stack of lemon protein cookies, with text overlay.

Great lemon flavor with the perfect cookie texture, these healthy lemon cookies are made with protein powder instead of flour and erythritol instead of sugar!

stack of four healthy lemon cookies on a white plate with granulated erythritol next to them and lemon in the background

To get a sugar-like crystal topping, press the cookies into granulated erythritol before placing them on the parchment-lined baking sheet.

unbaked lemon cookies topped with erythritol on a sheet of unbleached parchment paper

Give these delicious protein cookies a try!

Recipe

stack of four healthy lemon cookies on a white plate with granulated erythritol next to them and lemon in the background

Lemon Protein Sugar Cookies

Andréa Marchese
Easy recipe for healthy lemon cookies made with protein powder and sweetened with erythritol. A healthier lemon sugar cookie recipe!
4.50 from 2 votes
Print Recipe Pin Recipe
Prep Time 10 minutes mins
Cook Time 13 minutes mins
Total Time 23 minutes mins
Servings 8 cookies

Ingredients

  • ½ cup (36 g) unflavored whey/casein protein blend
  • 2 tablespoons (14 g) coconut flour
  • ½ teaspoon baking powder
  • a pinch of sea salt
  • 1 tablespoon (12 g) granulated erythritol for the cookie dough
  • zest of ½ lemon
  • 2 -3 tablespoons lemon juice
  • ½ teaspoon vanilla extract
  • 2 tablespoons (28 g) coconut oil melted
  • 1 tablespoon (12 g) granulated erythritol for the topping

Instructions
 

  • Preheat oven to 325F (163C).
  • Mix protein powder, coconut flour, baking powder, salt, and 1 tablespoon of erythritol.
    ½ cup (36 g) unflavored whey/casein protein blend, 2 tablespoons (14 g) coconut flour, ½ teaspoon baking powder, a pinch of sea salt, 1 tablespoon (12 g) granulated erythritol
  • Add lemon zest, lemon juice, vanilla, and coconut oil. Mix well. Use your hands to press the dough together.
    zest of ½ lemon, 2 -3 tablespoons lemon juice, ½ teaspoon vanilla extract, 2 tablespoons (28 g) coconut oil
  • Separate into 8 pieces, and roll each into a ball. Set on a piece of parchment paper.
  • Pour 1 tablespoon of erythritol on the parchment (not on the cookies).
    1 tablespoon (12 g) granulated erythritol
  • Press each cookie into the erythritol, flattening it out. Then place the cookie (erythritol side up) onto a parchment-lined cookie sheet.
  • Bake for about 13 minutes, or until firm.
  • Enjoy!

Notes

A note about substitutions: because each type of protein powder has a distinct flavor and texture when baked, I would not try substituting different types of protein powders in this recipe. (See my Recipe Basics video for examples of what goes wrong when you use the wrong protein powder.) If you want to make your own whey/casein blend, use 60% whey and 40% casein, as the Quest powder does.

Nutrition

Serving: 2cookies | Calories: 113kcal | Carbohydrates: 3g | Protein: 9g | Fat: 7g | Fiber: 2g | Net Carbohydrates: 1g
Tried this recipe?Please consider leaving a review!

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Comments

  1. Andréa says

    May 03, 2016 at 9:15 am

    Hi Davene,
    You could use stevia in the cookie dough, yes, but the amount would depend on the type of stevia you are using (granulated, fine powder, etc.) But for the outside of the cookie, I don't think stevia would work well. Erythritol has a nice sugar-like texture. I haven't found stevia to match that.
    Hope that helps. Thanks for writing in!
    Andréa

  2. Davene Teeter says

    May 02, 2016 at 3:46 pm

    Can you use stevia instead of etheryol?

  3. Andréa says

    April 14, 2016 at 1:51 pm

    Give them a try! They are yummy! :)

  4. Marsha says

    April 13, 2016 at 11:57 am

    Gotta make these! My son loves lemon

  5. Andréa says

    February 28, 2016 at 9:28 am

    NuZest looks great! Thanks for mentioning it. I must try! :)

  6. GiGi Eats says

    February 26, 2016 at 12:01 am

    I make cookies a lot like this too - except with NuZest!! Great minds! ;)

  7. Andréa says

    June 01, 2015 at 6:02 pm

    Hi Debie,
    Thanks for writing in! After seeing your comment, I checked my file and nothing is missing from the recipe. I just made the dough again, and it is a dry dough. To finish combining the ingredients, you'll need to use your hands. I've updated the recipe to say 2-3 tablespoons lemon juice, and to be sure readers realize the coconut oil should be melted.
    As for the number of cookies, if you break the dough into 8 pieces, you'd get 8 smaller cookies, that's all.
    Regarding the macros, I don't use My Fitness Pal. I compute them myself from the specific ingredients I use. For the ingredients I used, the total protein came to 34.482 grams. Divided by 4 (1 serving here = 2 cookies), that rounds to 9 grams per serving.
    Hope that helps!
    Andréa

  8. Debie says

    May 30, 2015 at 2:56 pm

    I just made these exactly as your recipe stated. But the dough was incredibly dry and wouldn't form a ball until I added another tbsp of water. Even then, it only made 5 cookies. I ran it through My Fitness Pal and with 5 servings, they came to 87 calories, 5 gm protein each. Is there something missing from the recipe?

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smiling woman in kitchen.

Hi, I'm Andréa! I’ve been baking with protein powder since 2013, and I can give you all the top tips for creating delicious high protein snacks, desserts, and more.

More about me →

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