These easy Soy Protein Crisp Bars are made with wholesome ingredients and pack 8g of protein per serving. They're no-bake, require zero protein powder, and taste better than store-bought protein bars without the artificial ingredients.
I have a serious sweet tooth, so I've always loved grabbing a protein bar when I need a quick snack. Lately, I'm loving the Quest Crispy Protein Bars but I’ve also been trying to cut back a bit on artificial artificial sweeteners and stabilizers.
So I started experimenting with making my own version at home. That’s when I came across soy protein crispies. They have that amazing crunchy texture that instantly reminds me of rice krispie treats from childhood, but with way more staying power thanks to the protein. After a few rounds of testing (and plenty of taste-testing), this recipe finally came together.
My clients love these too because they’re perfect for meal prep. You can make a batch on Sunday and have grab-and-go snacks ready for the entire week.
If you love easy, high-protein snacks, you might also enjoy my snickers yogurt cups or my Chocolate Peanut Butter Protein Balls for another no-bake option.
A Quick Look At This Recipe
✅ Recipe Name: Easy Soy Protein Crisp Bars (No-Bake, High Protein)
🕒 Ready In: ~10 minutes active prep + 2 hours chilling (or 30 minutes in freezer)
👪 Serves: 20 bars
🍽 Nutrition Info: ~138 calories per bar, 8g protein
🥣 Main Ingredients: Soy protein crispies, brown rice crisp cereal, peanut butter, maple syrup, coconut or brown sugar, coconut oil, hemp hearts or flaxseed
📖 Dietary Info: High protein, no-bake, can be made vegan, gluten-free
⭐ Why You'll Love It: Tastes like store-bought protein bars but with cleaner ingredients and way less money. Perfect for meal prep and satisfies your sweet tooth.
Extra bonus: This recipe is kid-friendly as it does not use any protein powder. If you want a similar recipe that uses protein powder, check out my protein rice krispie squares instead.
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Why This Recipe Is Good for You (Nutrition Highlights)
As a dietitian, what I love most about these bars is the balance of macronutrients and the quality of ingredients.
- High in protein: Each bar contains 8 grams of protein, primarily from the soy protein crispies. Soy protein is a complete protein, meaning it contains all nine essential amino acids your body needs. This makes these bars especially valuable if you're following a plant-based diet or just trying to increase your protein intake throughout the day.
- Sustained energy: The combination of protein, healthy fats from peanut butter and hemp hearts, and carbohydrates from maple syrup and coconut sugar creates a balanced snack that won't spike your blood sugar and then crash. The protein and fat slow down how quickly the carbohydrates are digested, giving you steady, sustained energy rather than a quick sugar rush.
- Naturally sweetened: While these bars do contain added sugar from maple syrup and coconut sugar, they're sweetened with less-processed options compared to most store-bought bars. You know exactly what's going into them, and you can adjust the sweetness to your preference.
Key Ingredients
The complete ingredient list with measurements can be found in the recipe card below.
- Soy protein crispies: These are the star ingredient. I use KoRo Soy Protein Crispies (UK link) or Smart Life Soy Protein Crisps (US link). They have an incredible crunch and pack about 20g of protein for every 100 calorie serving. Don't confuse these with puffed rice or regular rice crispies. Soy protein crispies are specifically made from soybeans and have a much higher protein content.
- Brown rice crisp cereal: These provide that delicate crispy texture you would usually find in a rice crispy treat. I like the brand One Degree Organic.
- Peanut butter: Look for natural, creamy, unsalted peanut butter. It should just list peanuts only on the ingredient list. I prefer smooth peanut butter for this recipe because it mixes more easily. If you can't find unsalted use a peanut butter that contains salt and omit adding salt later in the recipe.
- Maple syrup: Use pure maple syrup, not pancake syrup or table syrup. Pure maple syrup has a richer flavor and doesn't contain added corn syrup or artificial flavors. It acts as both a sweetener and a binding agent in this recipe.
- Coconut sugar: You could also substitute light or dark brown sugar if you prefer. The brown sugar adds a lovely caramel-like sweetness and helps the bars hold together.
- Coconut oil: The coconut oil helps bind everything together and gives the bars a slightly firmer texture when chilled.
- Hemp hearts: These tiny seeds are packed with protein, healthy fats, and have a mild, slightly nutty flavor. You can find them in most grocery stores near the nuts and seeds section. If you can't find hemp hearts, you could use ground flaxseed/linseed instead, though the texture will be slightly different.
- Vanilla extract: A little vanilla goes a long way in adding depth of flavor. Use pure vanilla extract rather than imitation vanilla if possible.
Ingredient Substitutions
Vegan: These bars are already vegan-friendly as written.
Gluten-free: This recipe is naturally gluten-free. Just make sure your soy protein crispies and brown rice crisp cereal are certified gluten-free if you have celiac disease or a gluten sensitivity.
Nut-free: Replace the peanut butter with sunflower seed butter or tahini.
Please note: This recipe has not been tested with other substitutions or variations. If you replace or add any ingredients, please let me know in the comments below! I'd love to hear how it worked out! 💛
Equipment
8×8-inch (20×20 cm) square baking pan – Line it with parchment paper, leaving some overhang on the sides like a sling to easily lift out the bars once set. This makes cutting so much easier.
How To Make Soy Protein Crisp Bars
Below are the simple steps for how to make this recipe with visuals I hope are helpful! Don't forget to check out the recipe card at the bottom for the full recipe.
- In a medium bowl, combine the soy protein crispies, brown rice cereal and hemp hearts. Mix them together so they're evenly distributed. Set this aside while you prepare the wet ingredients.
- In a small saucepan over low-medium heat, combine the peanut butter, maple syrup, coconut oil, coconut/brown sugar, vanilla extract and salt. Stir constantly until everything melts together and becomes smooth and glossy. This should take about 2-3 minutes. Don't let it boil—you just want everything melted and combined.
- Pour the warm peanut butter mixture over the crisp cereal and hemp hearts. Use a spatula to fold everything together, making sure every bit of the crispies gets coated with the sticky mixture. Work quickly while the mixture is still warm, as it becomes harder to stir as it cools.
- Transfer the mixture to your lined 8×8-inch pan. Use the back of a spatula or a piece of parchment paper to press the mixture down firmly and evenly into the pan. Really press down, you want the bars to be compact so they hold together well when cut.
- Optional: Drizzle with some melted chocolate before chilling the bars in the refrigerator for at least 2 hours, or pop them in the freezer for 30 minutes if you're in a hurry. The bars need to be completely firm before you cut them, or they'll crumble.
- Once firm, lift the entire slab out of the pan using the parchment paper overhang. Place it on a cutting board and use a sharp knife to cut into 20 bars. For clean cuts, wipe the knife with a warm, damp cloth between each cut.
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Expert Tips
Press firmly: The key to bars that hold together well is pressing the mixture very firmly into the pan. Don't be gentle.
Line your pan properly: Make sure your parchment paper has overhang on at least two sides. This creates "handles" that make it so much easier to lift the bars out for cutting.
Work quickly: The peanut butter mixture firms up as it cools, so mix everything together while it's still warm.
Cut when fully chilled: Don't try to cut these bars when they're still soft. They'll crumble and make a mess.
Warm your knife: For the cleanest cuts, dip your knife into a mug of hot water, wipe it dry, then make your cuts. This prevents the bars from sticking to the knife and makes cutting easier.
Storage
Store in an airtight container in the refrigerator for up to 2 weeks.
You can also freeze the soy crisp bars for up to 3 months. I recommend slicing before freezing, that way you can grab them straight from the freezer for a quick snack.
I don't recommend keeping these bars at room temperature as they will soften, however, they're fine to pack in a lunchbox for a few hours. They'll just be a bit softer than when straight from the fridge.
Nutrition Calculations
Nutrition information was calculated using the USDA FoodData Central database and verified brand data for accuracy. Estimates are based on the exact ingredients and amounts listed, so your numbers may vary slightly depending on the brands and measurements you use.
The nutrition calculations do not include any topping or chocolate drizzle.
More Healthy Snack & Treat Options You'll Love
- My No-Bake Healthy Rice Krispie Treats, another kid-friendly option
- My tahini chocolate cups - a great nut freeoption
- My oat breakfast bars, a great choice for getting more nuts & seeds into your diet
FAQS
You can, but the nutrition will be completely different. Rice crispies contain very little protein (less than 1g per serving), while soy protein crispies pack in 15-20g per serving. If you use rice crispies, you'll end up with something that tastes similar but won't have the high-protein benefits.
This usually happens if you didn't press the mixture firmly enough into the pan, or if you tried to cut them before they were fully chilled. Make sure to really compact the mixture down when you're pressing it into the pan, and give the bars at least 2 hours in the fridge (or 30 minutes in the freezer) to fully set before cutting. Also, make sure you mixed the wet ingredients while they were still warm—if the peanut butter mixture cools too much before mixing, it won't bind the crispies together as well.
Yes, because they don't use any protein powder! They're a great lunchbox treat or after-school snack.
📖 Recipe
Easy Soy Protein Crisp Bars (No-Bake, High Protein)
Equipment
- 1 8×8-inch (20×20 cm) square baking pan lined with parchment paper
Ingredients
- 130 grams soy protein crispies 2 cups - I use Smart Life Soy Protein Crisps (US link) or KoRo Soy Protein (UK link)
- 40 grams brown rice cereal crisps 2 cups I use One Degree Organic
- 30 grams hemp hearts 3 tablespoons
- 192 grams natural peanut butter unsalted ¾ cup
- 105 grams pure maple syrup ⅓ cup
- 2 tablespoons coconut oil
- ¼ teaspoon kosher salt
- 55 grams coconut or brown sugar packed ¼ cup
- 1 teaspoon vanilla extract
Optional Topping
- 20 grams dark chocolate about 2 squares , I used 70% lindt
- ¼ teaspoon coconut oil
Instructions
- Line an 8×8-inch (20×20 cm) square baking pan with parchment paper, leaving some overhang on the sides to use as handles later. Set aside.
- In a medium mixing bowl, combine the soy protein crispies, brown rice cereal crisps and hemp hearts. Stir to combine evenly and set aside.130 grams soy protein crispies, 40 grams brown rice cereal crisps, 30 grams hemp hearts
- In a small saucepan over low-medium heat, combine the peanut butter, maple syrup, coconut oil, coconut sugar, vanilla extract and salt. Stir constantly until everything melts together into a smooth, glossy mixture, about 2-3 minutes. Don't let it boil, just melt and combine.192 grams natural peanut butter unsalted, 105 grams pure maple syrup, 2 tablespoons coconut oil, ¼ teaspoon kosher salt, 55 grams coconut or brown sugar, 1 teaspoon vanilla extract
- Pour the warm peanut butter mixture over the soy crispies and hemp hearts. Use a spatula to fold everything together quickly, making sure all the crispies are evenly coated. Work while the mixture is still warm, as it becomes harder to stir as it cools.
- Transfer the mixture to your lined pan. Use the back of a spatula or a piece of parchment paper to press the mixture down very firmly and evenly into the pan. Really compact it, this is key for bars that hold together well.
- Chill in the refrigerator for at least 2 hours, or in the freezer for 30 minutes, until completely firm.
- Optional chocolate drizzle: Melt the dark chocolate with 1 teaspoon coconut oil in the microwave in 30-second intervals, stirring between each, until smooth. Drizzle over the chilled bars and return to the fridge for 10-15 minutes to set.20 grams dark chocolate, ¼ teaspoon coconut oil
- Once firm, lift the entire slab out of the pan using the parchment paper overhang. Place on a cutting board and use a sharp knife to cut into 20 bars. For clean cuts, warm your knife under hot water and wipe it dry between each cut.
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Laura says
Hi. What is a hemp heart? Your ingredients list calls for 25g of this, but your instructions call for flax. Can you clarify this?
Maria Lucey RD says
Hi Laura, thank you for highlighting this! I will update the recipe. Hemp hearts and flaxseed can be used interchangeably, so either will work.
Hemp hearts are ground down hemp seeds and they tend to have slightly more protein than flaxseed. If you can't find hemp hearts milled flaxseed will be a good option. Thank you for reading and I hope you enjoy the recipe.
sean says
Amazing, thank you.