These Protein Rice Krispie Treats are a fun and tasty twist on the classic snack! They mix crunchy Rice Krispies with yummy protein powder and marshmallows.
They’re perfect for a quick energy boost after a workout or just as a sweet treat. I love making a batch and sharing them with friends—everyone enjoys the crunch and chew! 😊
Key Ingredients & Substitutions
Rice Krispies Cereal: This classic cereal adds crunch! If you need a substitute, try any puffed rice or corn cereal for a similar texture.
Mini Marshmallows: They melt smoothly and hold everything together. If you can’t find them, regular marshmallows work fine. Just chop them up into smaller pieces.
Protein Powder: I love vanilla for its sweetness! You can use any flavor you prefer, or even leave it out if you want a classic treat. For a plant-based option, try pea or soy protein.
Unsalted Butter: Butter adds richness. You can swap it with coconut oil for a dairy-free version, or use a vegan butter substitute.
Sprinkles: They make these treats extra fun! If you want it healthier, you can skip them or use a nut or seed mix instead for crunch.
How Do I Melt Marshmallows Without Burning Them?
Melted marshmallows are a key part of these treats, but they can burn easily. Here’s my strategy to get it just right:
- Start with short microwave times—30 seconds works best. Stir in between to keep the heat evenly distributed.
- If you don’t have a microwave, try using a double boiler on the stove. This gentle heat will help prevent burning.
- Make sure to remove from heat as soon as they’re melted for a smooth consistency!
With these tips, your protein Rice Krispie Treats will turn out delicious every time! Enjoy making them!

Protein Rice Krispie Treats
Ingredients You’ll Need:
- 3 cups Rice Krispies cereal
- 1 ½ cups mini marshmallows
- 2 tbsp unsalted butter
- 1/2 cup vanilla protein powder (whey or plant-based)
- 1/4 tsp salt
- 1/2 tsp vanilla extract
- Sprinkles (optional, for topping)
How Much Time Will You Need?
This recipe takes about 10 minutes to prepare and about 1 hour for the treats to set. So, in just around 1 hour and 10 minutes, you’ll have delicious, protein-packed Rice Krispie Treats ready to enjoy!
Step-by-Step Instructions:
1. Prepare the Baking Pan:
Start by greasing a 9×9-inch baking pan. You can also line it with parchment paper to make it easier to remove the treats later. This step is important so they won’t stick!
2. Melt the Butter:
In a large microwave-safe bowl, melt the butter in the microwave for about 30 seconds. Make sure to keep an eye on it to prevent it from bubbling over.
3. Melt the Marshmallows:
Add the mini marshmallows to the melted butter. Microwave them in 30-second increments, stirring in between each time until they are completely melted and smooth. This creates a gooey base for your treats!
4. Mix in Protein Powder:
Once the marshmallows are melted, stir in the vanilla extract, salt, and protein powder. Mix everything together until it’s well combined. You’ll notice the mixture becomes quite thick—that’s okay!
5. Combine with Rice Krispies:
Now, fold in the Rice Krispies cereal gently. Make sure each piece is nicely coated with the marshmallow mixture for that perfect crunch!
6. Spread in the Pan:
Transfer the mixture into the prepared pan. Using a buttered spatula or a piece of wax paper, press the mixture down evenly into all corners. It should be an even layer—no need to press too hard!
7. Add Sprinkles:
If you want to add some fun, sprinkle colorful sprinkles on top while the mixture is still warm. Press them lightly into the treats so they stick.
8. Let Them Set:
Allow the treats to cool and set at room temperature for about 1 hour. This helps them firm up and makes cutting them easier.
9. Cut and Serve:
Once set, cut the treats into squares. Serve them to your friends or enjoy them all for yourself! Any leftovers can be stored in an airtight container at room temperature.
Enjoy your delicious, protein-packed, and colorful Rice Krispie Treats!
Can I Use Gluten-Free Rice Krispies?
Absolutely! There are gluten-free versions of Rice Krispies available, which are perfect for making these treats if you have dietary restrictions. Just check the box to confirm they’re gluten-free!
Can I Substitute the Protein Powder?
Yes, you can substitute protein powder with a similar amount of powdered peanut butter or even skip it entirely for a classic Rice Krispie treat. Just keep in mind that this will reduce the protein content!
How Do I Store Leftover Treats?
Store any leftovers in an airtight container at room temperature for up to 3 days. To keep them fresher for longer, you can refrigerate them for up to a week, but note that they may become a bit firmer.
Can I Customize the Recipe with Mix-Ins?
Absolutely! Feel free to add in your favorite mix-ins like chocolate chips, nuts, or dried fruit for added flavor and texture. Just make sure to adjust the ratios slightly so the mixture holds together well.
