No‑Bake S’mores Protein Bars (Healthy, High‑Protein Treat)
As an Amazon Associate, I earn from qualifying purchases. Read the full disclosure here.
These healthy No Bake S’mores Protein Bars are thick, fudgy, and marshmallow-studded with melty chocolate pockets and that classic toasted graham flavor in every bite. Around 14 to 20 grams of protein per bar, no oven required, and a chocolate drizzle on top to finish. They taste like a candy bar and actually keep you full for hours.
Love a good chocolate-marshmallow protein situation? You’ll also want to grab a batch of these Chocolate Peanut Butter Protein Bars and these No-Bake Marshmallow Peanut Butter Chocolate Bars. So much chocolate-marshmallow love going on around here! Plus, this recipe is part of my growing No-Bake Protein Bar Series, where you can explore even more high protein, dessert-coded bars.
WANT TO SAVE THIS RECIPE?
Just enter your email and get it sent to your inbox! Plus you’ll get new recipes from us every week!
Why These No Bake Homemade S’mores Protein Bars Are Irresistible
- Real campfire flavor in every bite. Toasted graham, gooey marshmallow, and melty chocolate. The whole s’mores experience without the smoke in your hair!
- Soft, fudgy cookie dough texture. Not chalky, not crumbly, not dry. Just thick and chewy the way a protein bar should be.
- 14 to 20 grams of protein per bar. Cut them into 8 for an everyday snack or 6 for a thicker, bakery-style bar. So flexible!
- That glossy chocolate drizzle. Optional but oh so worth it.
- Kids love them too. They taste like a candy bar, so the protein part is your little secret. 🙂
S’mores Protein Bar Macros
- These homemade s’mores protein bars are easy to customize based on how big you slice them, and the macros stay right in line with the rest of the protein bar series. Cut into 8 bars, each piece lands around 14 grams of protein, which is a great everyday snack size.
- If you want a thicker, more substantial bar, slice the pan into 6 bars instead and those come in around 18 to 20 grams of protein each. Same recipe, same flavor, two portion options. So which way are you slicing?
Ingredients for No Bake S’mores Protein Bars
Here’s everything you need for a tray of thick, fudgy s’mores protein bars.
Protein Bar Base
- 1 1/2 cups oat flour for that soft, chewy, brownie-bar texture. Make your own by blending rolled oats until super fine.
- 1/2 cup protein powder in vanilla, peanut butter, or chocolate. Use whichever flavor you like.
- 1/4 cup unsweetened cocoa powder to deepen the chocolate flavor.
- 1/4 teaspoon salt. Don’t skip the salt! Trust me on this one.
- 1/2 cup almond butter or peanut butter. The drippy kind mixes in the easiest.
- 1/3 cup agave or maple syrup for that fudgy, no-bake texture. Honey works too.
- 1/4 cup milk, as needed to bring the dough into a soft, cookie-dough consistency.
S’mores Mix-ins and Toppings
- 1/2 cup mini marshmallows for that gooey, nostalgic s’mores moment.
- 1/2 cup chocolate chips or chopped chocolate because melty chocolate pockets are essential.
- 1/3 cup crushed graham crackers for that classic s’mores crunch and flavor.
Optional Chocolate Drizzle
- 1/2 cup dark chocolate chips
- 1 tablespoon coconut oil
How to Make No Bake S’mores Protein Bars
- Mix the dry ingredients. In a large bowl, whisk together 1 1/2 cups oat flour, 1/2 cup protein powder, 1/4 cup cocoa powder, and 1/4 teaspoon salt until evenly combined and lump free.
- Stir together the wet ingredients. In a separate bowl, mix 1/2 cup almond butter (or peanut butter), 1/3 cup agave or maple syrup, and a splash of milk until smooth and glossy. If your nut butter is thick or dry, warm it for 15 to 20 seconds first so it blends easily.
- Combine wet and dry. Pour the dry ingredients into the wet and stir until a thick, soft dough forms. It should feel like cookie dough. If it’s crumbly, add another tablespoon of milk. If it’s too soft, add a little more oat flour.
- Press into the pan. Line an 8×4 or 9×5 loaf pan with parchment paper. Press the dough firmly and evenly into the pan. Really pack it down so the bars hold together when you slice them.
- Top with all the s’mores goodness. Sprinkle 1/2 cup mini marshmallows, 1/2 cup chocolate chips, and 1/3 cup crushed graham crackers over the top. Press them in gently so they stick.
- Make the optional chocolate drizzle. Melt 1/2 cup dark chocolate chips with 1 tablespoon coconut oil in 30-second microwave bursts, stirring in between, until smooth. Drizzle it over the top in pretty ribbons.
- Chill until firm. Refrigerate for 1 to 2 hours, or freeze for 20 to 30 minutes if you’re impatient like me.
- Slice and enjoy. Lift the slab out of the pan using the parchment and slice into 6 thick bars (18 to 20g protein each) or 8 standard bars (14g protein each). Come to Mama!
Tips for the Best Homemade S’mores Protein Bars
- Press the dough down firmly. The tighter you pack the mixture, the cleaner and sturdier your slices will be. Really press it in.
- Use drippy nut butter. If your almond butter or peanut butter is thick or dry, warm it for 15 to 20 seconds in the microwave first. It blends into the oat flour and protein powder so much easier and keeps the bars fudgy, not crumbly.
- Taste the dough before pressing. Want it sweeter? Add a tiny drizzle more agave. Want deeper chocolate? Stir in another tablespoon of cocoa. Want extra s’mores flavor? Fold in more graham crumbs.
- Let them chill completely before slicing. Those marshmallows are calling, but a full chill gives you clean, bakery-style slices. Patience pays off every time.
- Toast the marshmallows for full effect. Pop the topped slab under the broiler for 30 to 60 seconds (watch closely!) for golden, campfire-style marshmallows. So fun!
More no-bake favorites? You’ll also love these Healthy No-Bake Chocolate Peanut Butter Oatmeal Bars and this High Protein Chocolate Mousse. Can we ever have enough no-bake protein treats? I think not.
Fun Variations to Try
- Peanut Butter S’mores. Use peanut butter for the base and stir 1/4 cup mini peanut butter cups into the dough. So good with the marshmallows!
- Double Graham Crunch. Fold 1/4 cup of crushed graham crackers right into the dough for extra texture in every bite.
- Toasted Marshmallow Top. Use a kitchen torch or your broiler to lightly toast those marshmallows for a real campfire feel.
- Mocha S’mores. Add 1 teaspoon espresso powder to the dough for a coffee-chocolate twist. Magic.
- Hershey’s Drizzle. Skip the dark chocolate drizzle and warm 1/4 cup of Hershey’s chocolate frosting for 5 to 10 seconds, then drizzle over the top. Pure s’mores nostalgia.
How to Store No Bake S’mores Protein Bars
- Store the homemade s’mores protein bars in an airtight container in the refrigerator for up to 7 days. They hold their shape best when cold, so eat them straight from the fridge for the cleanest bite.
- Freezing: Wrap individual bars in plastic wrap and store in a freezer bag for up to 2 months. Thaw in the fridge for about an hour before eating, or enjoy them slightly frozen for an extra chewy texture.
- Meal prep tip: Make a double batch on Sunday so you’ve got a high-protein snack ready every time a chocolate craving hits. They actually taste even better after a day or two in the fridge once the flavors meld.
No Bake S’mores Protein Bars FAQs
Can I make these healthy s’mores protein bars ahead of time?
Yes! These bars are perfect for meal prep. Make them up to 7 days ahead and store them covered in the fridge. The flavors actually deepen and improve after a day or two, so they’re great for batching on Sunday and snacking through the week.
What protein powder works best in s’mores protein bars?
Vanilla, peanut butter, or chocolate whey protein all blend beautifully into this cookie dough base. Plant-based protein works too, but it can run a little drier, so add an extra splash of milk if the dough feels stiff. Casein gives you a thicker, even fudgier texture if that’s your thing.
Can I make these healthy s’mores protein bars gluten free?
Absolutely. Use certified gluten-free oat flour, gluten-free graham crackers, and gluten-free protein powder. The rest of the ingredients are naturally gluten free, so it’s a simple swap and the texture stays exactly the same.
Why are my bars crumbly?
The dough probably needs more moisture. Add another tablespoon of milk or nut butter and mix again until it feels like soft cookie dough. Also make sure you’re pressing it firmly and evenly into the pan. That packed-down pressure is what holds everything together once chilled.
So friends, are you ready to whip up the most ridiculously fudgy, marshmallow-loaded, campfire-flavored protein bars ever? Grab your oat flour, your graham crackers, and a wild handful of mini marshmallows, and let’s make some magic! Soft, chewy, chocolatey, and packed with real protein. Time to get chilling!
Follow me on Instagram for more chocolate-loaded creations! Share your no bake healthy s’mores protein bars masterpieces on Pinterest and Facebook! Or join my weekly newsletter to be the first to know when new treats drop.
If you’re loving this no-bake series, you’ll also want to grab my Summer Dessert Bundle for even more campfire-style treats!
More No-Bake Protein Treats to Love
- Chocolate Peanut Butter Protein Bars (No-Bake)
- Healthy No-Bake Chocolate Peanut Butter Oatmeal Bars
- High Protein Chocolate Mousse with Cottage Cheese or Greek Yogurt
- No-Bake Marshmallow Peanut Butter Chocolate Bars
- The Full No-Bake Protein Bar Series
No Bake S'mores Protein Bars
Equipment
- 8x4 or 9x5 loaf pan
- Parchment paper
- Large mixing bowl
- Whisk
- Spatula
- Microwave-safe bowl
Ingredients
Protein Bar Base
- 1 ½ cups oat flour
- ½ cup vanilla, peanut butter, or chocolate protein powder
- ¼ cup unsweetened cocoa powder
- ¼ teaspoon salt
- ½ cup almond butter or peanut butter, drippy
- ⅓ cup agave or maple syrup
- milk, as needed
S'mores Mix-ins and Toppings
- ½ cup mini marshmallows
- ½ cup chocolate chips or chopped chocolate
- ⅓ cup crushed graham crackers
Optional Chocolate Drizzle
- ½ cup dark chocolate chips
- 1 tablespoon coconut oil
Instructions
Make the Protein Bars
- Whisk 1 1/2 cups oat flour, 1/2 cup protein powder, 1/4 cup cocoa powder, and 1/4 teaspoon salt in a large bowl until evenly combined and lump free.
- Stir 1/2 cup almond butter, 1/3 cup agave or maple syrup, and a splash of milk in a separate bowl until smooth and glossy. If the nut butter is thick, warm it for 15 to 20 seconds first.
- Pour the dry ingredients into the wet and stir until a thick, soft cookie-dough texture forms. Add another tablespoon of milk if it's crumbly or a little more oat flour if too soft.
- Line an 8x4 or 9x5 loaf pan with parchment paper. Press the dough firmly and evenly into the pan, packing it down so the bars hold together when sliced.
- Top with all the s'mores goodness. Sprinkle 1/2 cup mini marshmallows, 1/2 cup chocolate chips, and 1/3 cup crushed graham crackers over the top, pressing in gently so they stick.
Add the Chocolate Drizzle (Optional)
- Melt 1/2 cup dark chocolate chips with 1 tablespoon coconut oil in 30-second microwave bursts, stirring between, until smooth.
- Drizzle the melted chocolate over the topped bars in pretty ribbons.
Chill and Slice
- Refrigerate for 1 to 2 hours, or freeze for 20 to 30 minutes, until firm enough to slice cleanly.
- Lift the slab out of the pan using the parchment and slice into 6 thick bars (18 to 20g protein each) or 8 standard bars (14g protein each).
