A crunchy, healthier take on a classic treat with a protein boost. These Protein Rice Krispies combine natural peanut butter, maple syrup, coconut oil, and collagen powder to deliver approximately 12 grams of protein per square while keeping the texture crisp and satisfying.
A Quick Look At The Recipe
- ⏲️ Ready In: 1 hr 5 mins
- 👪 Serves: 9
- 🍽 Calories and Protein: ~322 kcal and ~12 g protein per square
- 📋 Main Ingredients: Crispy rice cereal, natural peanut butter, collagen powder, maple syrup, coconut oil, and optional vegan chocolate chips.
- 📖 Dietary Notes: Naturally dairy-free and gluten-free when using appropriate ingredients; refined sugar free if you stick to maple syrup.
- ⭐ Why You’ll Love It: No-bake, crunchy, and chocolate-ready — a more nourishing way to enjoy a sweet snack or dessert.
You don’t need marshmallows to make an indulgent rice Krispie bar. Swapping marshmallows for peanut butter and natural sweeteners yields a treat that’s less processed, higher in protein, and still delightfully chewy and crisp. These bars are designed to be simple: minimal prep, no oven, and easy to portion for lunchboxes, after-practice snacks, or a quick post-workout bite.
Many families appreciate them because they feel familiar but are a little more filling than traditional cereal bars. If you enjoy recipes that pair sweet and salty flavors, or if you’re trying to increase daily protein intake without sacrificing enjoyment, this recipe is an excellent addition to your rotation.
Why No Marshmallows?
Traditional rice Krispie treats rely on marshmallows for sweetness and binding, which increases added sugar and processed ingredients. This version uses peanut butter and maple syrup to bind the cereal, offering a cleaner ingredient list and more protein. The result is a bar with a reliable hold and balanced flavor without relying on confections.
Why You’ll Love This Recipe
Easy: Five main pantry ingredients and no baking required.
Customizable: Top them with chocolate, sprinkles, or sea salt for dessert-style bars, or leave them plain for a snack option.
Balanced: Combines carbs and healthy fats with added protein for a satisfying bite that works as a treat or a small post-workout snack.
Ingredients and Substitutions
- Peanut butter: Use natural, runny peanut butter so it mixes smoothly with the oil. If you prefer a milder flavor, almond butter works as an alternative.
- Cereal: Use crispy rice cereal for the classic crunch; rice puffs may produce a chewier texture.
- Collagen powder: Adds protein and helps with binding. Other protein powders can be used but may change the texture—collagen typically blends smoothly and keeps the bars less crumbly.
- Maple syrup: A natural sweetener that helps hold the mixture together. Honey is an acceptable swap if not strictly vegan.
- Coconut oil: Measured solid for structure in the mix; a small amount of neutral oil can work if needed.
See the recipe card further down for exact quantities and the step-by-step method.
Flavor Variations
A few simple swaps and additions make these bars versatile:
- Nut-free: Swap peanut butter for sunflower seed butter to keep the bars nut-free.
- Chocolate chips: Stir in mini chocolate chips after the mixture is mixed and slightly cooled so they keep their shape.
- Sprinkles or themed toppings: Press sprinkles into the tops before chilling for festive bars.
- Salted finish: Sprinkle flaky sea salt on top after adding chocolate for a sweet-and-salty contrast.
- Drizzles: Drizzle with coconut caramel or a thin chocolate glaze instead of fully coating for a lighter touch.
How To Make Protein Rice Krispie Treats
Step 1: Melt the coconut oil over low heat and line an 8×8 pan with parchment paper. Mix the collagen powder into the crispy rice cereal in a large bowl.
Step 2: In a separate bowl, whisk together peanut butter, maple syrup, and the melted coconut oil until smooth. Pour over the cereal and mix thoroughly so all pieces are coated.
Step 3: Transfer the mixture to the lined pan and press down firmly using another sheet of parchment so the bars pack tightly.
Step 4: If using chocolate, melt chocolate chips with a little coconut oil, smooth over the pressed bars, then chill in the freezer for about an hour to set.
Step 5: Remove from the freezer, let sit 5–10 minutes at room temperature, then slice into squares. Store in an airtight container in the fridge, or freeze for longer storage.
Expert Tips To Make It
- Use a high-quality collagen powder for a smooth texture and reliable protein boost. Collagen behaves differently from whey or plant-based powders and tends to blend without making the mixture crumbly.
- Press the mixture firmly in the pan—this step is key. The firmer the pack, the better the bars will hold together when sliced.
- Use runny, freshly stirred natural peanut butter. Stiff or separated nut butter can make the mixture harder to combine.
- Cut sizes determine calories: cutting into nine large squares yields a generous portion; cut into twelve for smaller servings.
- If you top with chocolate, let the pan sit briefly before slicing so the coating doesn’t crack.
Protein Rice Krispie Treats FAQs
Yes. Substitute sunflower seed butter for peanut butter to make a nut-free version. Choose a slightly sweeter variety if you prefer a flavor closer to peanut butter.
Yes. Once the chocolate topping (if used) is fully set, store squares in a single layer or separated by parchment paper in a freezer-safe bag for up to three months. Thaw briefly before serving.
Whey or other animal-based protein powders can work, but plant-based powders often absorb more liquid and may produce denser bars. Collagen tends to blend smoothly without changing texture dramatically.
More High-Protein Desserts You’ll Love
If you enjoyed these protein Rice Krispies, try other simple, protein-forward desserts and snacks like peanut butter protein ice cream, dairy-free protein puddings, or gluten-free protein brownies to keep satisfying cravings while still prioritizing protein and cleaner ingredients.
If you make this Protein Rice Krispies Squares recipe, please consider leaving a star rating and a short comment to share how it turned out for you.
Protein Rice Krispies Treats [No Marshmallow]
Shelby Stover
5 mins
0 mins
1 hr 5 mins
Ingredients
- 4 cups Crispy rice cereal
- ½ cup Coconut oil (measured solid)
- ⅔ cup Collagen powder
- ½ cup Maple syrup
- ⅔ cup Natural peanut butter (runny)
- 1.5 cups Vegan chocolate chips (optional)
- 1.5 teaspoons Coconut oil (for chocolate topping)
Instructions
- Melt ½ cup coconut oil over low heat and line an 8×8 baking pan with parchment paper.
- In a large bowl, combine the collagen powder and crispy rice cereal.
- In a separate bowl, whisk together peanut butter, maple syrup, and the melted coconut oil until smooth. Pour over the cereal mixture.
- Mix thoroughly until all cereal pieces are coated and the mixture is sticky with no dry spots.
- Transfer the mixture to the lined pan and press firmly with a second sheet of parchment until evenly distributed and compacted.
- If using chocolate, melt chips with 1.5 teaspoons coconut oil over low heat and stir until smooth. Pour over the packed bars and spread evenly.
- Freeze for about 1 hour to set. Remove and let sit 5–10 minutes before slicing into squares.
Notes
Mix thoroughly so every cereal piece is coated — uncoated bits will make the bars crumbly. The chocolate topping is optional and is not included in the nutritional breakdown.
Store in an airtight container in the fridge for several days, or freeze for longer storage. If frozen, let thaw 15–20 minutes before serving for best texture.
Nutrition
