These Easy Lemon Protein Bars are a zesty, nutritious snack packed with protein and bright lemon flavor. Perfect for on-the-go energy, post-workout fuel, or a healthy treat, they’re chewy, satisfying, and easy to make!

Bright, tangy, and packed with protein, these Easy Lemon Protein Bars are the perfect snack for busy mornings, post-workout fuel, or a healthy pick-me-up anytime.
Chewy, satisfying, and bursting with lemon flavor, they’re simple to make and a delicious way to fuel your day without any guilt.

Why You Will Love This Recipe!
- High-Protein Snack: Packed with protein to fuel workouts and keep you full.
- Bright & Zesty Flavor: Fresh lemon adds a refreshing, tangy taste.
- Quick & Easy: Ready in under 30 minutes with simple ingredients.
- Healthy & Guilt-Free: Made with wholesome ingredients for a nutritious treat.
- Perfect for On-the-Go: Great for lunchboxes, post-workout, or quick snacks anytime.
Ingredients Needed

- Rolled oats – Whole grain oats that add chewiness and fiber.
- Protein powder – Vanilla or unflavored powder to boost protein content.
- Honey or maple syrup – Natural sweetener that binds and adds sweetness.
- Almond butter – Creamy nut butter for flavor and healthy fats.
- Lemon juice – Freshly squeezed juice for bright, tangy flavor.
- Lemon zest – Adds concentrated citrus aroma and lemony brightness.
- Coconut flour – Light flour to thicken and add texture.
- Chia seeds – Optional superfood for fiber, protein, and crunch.
- Vanilla extract – Enhances sweetness and complements the lemon flavor.
How to Make Easy Lemon Protein Bars

Step One: In a large bowl, combine rolled oats, protein powder, coconut flour, chia seeds (if using), and a pinch of salt. Mix well to evenly distribute all dry ingredients.
Step Two: In a separate bowl, whisk together almond butter, honey or maple syrup, lemon juice, lemon zest, and vanilla extract until smooth and fully combined.

Step Three: Pour the wet mixture into the dry ingredients. Stir thoroughly until a thick, sticky dough forms. Press firmly to ensure all ingredients are well incorporated.
Step Four: Line an 8×8-inch pan with parchment paper. Transfer the mixture into the pan and press it down evenly using a spatula or your hands to create a compact layer. Refrigerate for at least 1–2 hours, or until the bars are firm enough to cut.

Easy Lemon Protein Bars Recipe Tips
- Use fresh lemons: Freshly squeezed lemon juice and zest give the bars the brightest, most natural flavor.
- Press firmly into the pan: This helps the bars hold together and makes slicing easier.
- Adjust sweetness: Taste the mixture before chilling and add a little more honey or maple syrup if desired.
- Add mix-ins: Optional ingredients like chopped nuts, dried fruit, or chocolate chips can add extra flavor and texture.
- Chill completely: Refrigerate long enough for the bars to firm up, ensuring clean slices and a perfect texture.
Storing, Freezing & Reheating Instructions
- Storing: Keep the bars in an airtight container in the refrigerator for up to 5 days to maintain freshness and firmness.
- Freezing: Wrap individual bars in plastic wrap or parchment paper and place them in a freezer-safe container or bag for up to 3 months. Thaw in the refrigerator before serving.
- Reheating: These bars are best enjoyed chilled or at room temperature. If desired, warm slightly in the microwave for 10–15 seconds for a softer, chewier texture.

Easy Lemon Protein Bars Recipe Faqs
Can I use a different nut butter? Yes! Almond butter is recommended, but peanut butter, cashew butter, or sunflower seed butter work well too.
Can I make these bars vegan? Absolutely! Use maple syrup or agave instead of honey and ensure your protein powder is plant-based.
How long do the bars last? Store them in an airtight container in the fridge for up to 5 days.
Can I freeze the lemon protein bars? Yes! Wrap individually in plastic wrap and place in a freezer-safe container for up to 3 months. Thaw in the refrigerator before eating.
Can I add mix-ins to the bars? Definitely! Chopped nuts, dried fruit, or mini chocolate chips can add extra flavor and texture.
More Easy Protein Recipes
Ninja Slushi Protein Milkshake
Chocolate Covered Strawberry Protein Ice Cream (Ninja Creami)
Protein Monster Cookie Ninja Creami Ice Cream Recipe
Air Fryer Protein Granola Recipe
Ninja Creami Vanilla Protein Ice Cream Recipe
Ninja Creami Oreo Protein Ice Cream
Share Your Creations! Are you active on Facebook? Join our Air Fryer Recipes Group, where hundreds of thousands of Air Fryer enthusiasts gather and share your photos! I’m always thrilled to see what you’ve made. For those on Instagram, don’t forget to tag me @forktospoon – I can’t wait to admire your culinary adventures!

Easy Lemon Protein Bars
Description
Ingredients
- 1 cup rolled oats
- 1/2 cup vanilla protein powder, or unflavored protein powder
- 1/4 cup coconut flour
- 2 tablespoons chia seeds, optional
- 1/4 teaspoon salt
- 1/2 cup almond butter
- 1/4 cup honey, or maple syrup
- 2 tablespoons fresh lemon juice
- 1 teaspoon lemon zest
- 1 teaspoon vanilla extract
Instructions
- In a large bowl, combine rolled oats, protein powder, coconut flour, chia seeds (if using), and salt. Mix well.
- In a separate bowl, whisk together almond butter, honey or maple syrup, lemon juice, lemon zest, and vanilla extract until smooth.
- Pour the wet mixture into the dry ingredients. Stir until a thick, sticky dough forms. Press firmly to incorporate all ingredients.
- Line an 8×8-inch pan with parchment paper. Press the mixture evenly into the pan.
- Refrigerate for 1–2 hours until firm enough to cut.
- Remove from the pan using parchment paper, slice into 6 bars, and enjoy!
Equipment
- Baking Pan
- Cooking Spray
Nutrition
Share this recipe
We can’t wait to see what you’ve made! Mention @forktospoon or tag #forktospoon!
Jennifer Griffin
Is the topping just powdered sugar?
Laurie
yes
Judy
Lemon squares look YUMMY!!
Do you use Self Rising or Plain flour?
Thanks …..Can’t wait to make!!
Laurie
Just regular, all-purpose flour,