If you love lemon desserts that strike the perfect balance between sweet and tangy, these Lemon Cookie Protein Bars With Frosting are about to become a new favorite. Soft, cookie-like bars with a zesty lemon flavor are topped with a creamy lemon frosting, creating a refreshing treat that tastes indulgent while still supporting your protein goals.

Lemon desserts are timeless for a reason. The citrusy brightness feels light and energizing, making these bars ideal not just as a dessert, but also as an afternoon snack or post-workout bite. Unlike traditional lemon bars that rely on refined flour and sugar, this recipe focuses on simple, wholesome ingredients and added protein to help keep you satisfied.

These bars are completely no-bake, which means minimal effort and no oven required. Everything comes together in one bowl, gets pressed into a pan, and then chilled until firm. The result is a soft, chewy lemon cookie base that holds together beautifully while still melting in your mouth.

Protein powder plays a key role here – not just nutritionally, but structurally. It helps bind the bars and gives them that satisfying, bakery-style texture without needing eggs or flour. Pairing protein with healthy fats also slows digestion, helping prevent the blood sugar spikes that often follow sweet snacks.

The frosting takes these bars to the next level. Creamy, lightly tangy, and naturally sweetened, it adds a layer of indulgence that makes these feel like a true dessert. Despite its richness, the frosting is easy to make and uses ingredients you likely already have on hand. A touch of lemon zest or juice keeps the flavor fresh and vibrant without overpowering the cookie base.

Another reason these bars are such a win? They are freezer-friendly. You can make a batch at the start of the week, slice them into portions, and keep them on hand whenever a craving hits. They are perfect for busy days, meal prep, or even healthy entertaining.

Whether you are someone who prefers lighter, fruit-forward desserts or you are simply looking for a break from chocolate-based protein snacks, these lemon cookie bars offer a refreshing change. They prove that healthy, protein-rich treats can still feel fun, flavorful, and still be satisfying. Bright, creamy, and packed with protein, they are the perfect balance of nourishment and indulgence – one zesty bite at a time.

But be warned, this is another one of those ‘bet you can’t eat just one’ treats!✨

Lemon Cookie Protein Bars With Frosting

Soft, zesty lemon cookie–style protein bars topped with a creamy lemon frosting. These no bake bars are refreshing, lightly sweet, and packed with protein, perfect for a bright afternoon snack, healthy dessert, or freezer-friendly treat. 🍋🤍

Course Breakfast, Dessert, Lunch, Snack

Cuisine Healthy Clean Eating

Keyword clean eating dessert or snack, creamy lemon protein bars no bake, healthy no bake lemon protein bars, lemon cookie protein bars with frosting, lemon protein bars with protein frosting

Servings 8

Ingredients

• 1 cup almond flour
• 1/2 cup vanilla protein powder
• 1/4 cup maple syrup or honey
• 1/4 cup coconut oil, melted
• Zest of 1 large lemon
• 2 tablespoons fresh lemon juice
• 1/2 teaspoon vanilla extract
• Pinch of salt

Lemon Frosting

• 3/4 cup thick Greek-style yogurt
• 3 tablespoons cream cheese or coconut cream
• 1-2 tablespoons honey or maple syrup (to taste)
• 1 lemon, zest and juice
• 1-2 tablespoons vanilla protein powder (optional, for extra protein)

Instructions

• Line a 7 x 5-inch loaf pan or dish with parchment paper on the bottom and sides leaving some overhanging to act as a handle to get the bars out easier for cutting.

  In a mixing bowl, combine almond flour, protein powder, and salt.

  Add honey, melted coconut oil, lemon zest, juice and vanilla extract. Stir until a thick dough forms.

  Press the mixture evenly into the prepared pan. Place the pan in the fridge while you prepare the frosting.

Lemon Frosting

• In a separate bowl, mix all frosting ingredients until smooth and creamy.

  Spread the frosting evenly over the chilled lemon cookie base.

  Refrigerate for at least 2 hours, or freeze for 45–60 minutes until fully set.

  Slice into 8-10 bars or more smaller squares.

  Store in an airtight container in the fridge for up to 1 week or freezer for up to 3 months.

  Thaw slightly before eating.

  Tips:

  For extra lemon flavor, add more zest rather than juice to keep the texture firm.

  Swap almond flour for oat flour if desired - just add 1–2 extra tablespoons of liquid.  

Print Recipe

If you are looking for more delicious, healthy, protein-rich, no bake desserts and treats to help you reach your health, wellness and fitness goals, you will love my collection here: Blended Bites