If you grew up loving those fudgy, sprinkle-topped cosmic brownies from your lunchbox days, you’re in for a (healthier) treat! These Cosmic Brownie Protein Bites have all the nostalgic, chocolatey goodness of the original, but with a nourishing twist. They’re chewy, rich, and topped with those signature rainbow mini chips that make them irresistible to both kids and adults.

If you know me, you know I’m all about finding snacks that satisfy a sweet craving and deliver some nutrition. These cosmic brownie energy bites check both boxes! They’re made with oat flour and protein powder, plus sunflower seed butter and cocoa for healthy fats and antioxidants. I love keeping a batch in the fridge for busy mornings, lunchbox treats, or when that afternoon chocolate craving hits!
They also come together in about 20 minutes, no baking at all! My little one loves helping roll them and add the rainbow chips on top (and maybe sneaking a few). If you’re looking for an easy, freezer-friendly snack that’s fun, energizing, and a little nostalgic, these protein brownie bites will quickly become a staple.
If you want a variety of energy bites throughout the week, prep some cinnamon roll energy bites and cookie dough energy bites, too!
Nutrition at a Glance
- Protein: Thanks to chocolate protein powder, these bites help keep you full longer and support muscle recovery after workouts.
- Healthy fats: Sunflower seed butter and coconut oil add satisfying, heart-healthy fats for sustained energy.
- Fiber: Oat flour provides whole-grain fiber to support digestion and balance blood sugar.
- Antioxidants: Unsweetened cocoa and dark chocolate chips are rich in antioxidants that help fight inflammation.
- Allergy-friendly: Made without peanuts or tree nuts (when using sunbutter), they’re a great option for nut-free homes.
Ingredients You Need
- Oat flour: Adds fiber and a mild, cookie-like flavor. You can make your own by blending rolled oats until fine.
- Chocolate protein powder: Boosts protein and enhances that brownie flavor. Use your favorite plant-based or whey option.
- Unsweetened cocoa powder: Deepens the chocolate flavor and adds antioxidants. Dutch-processed cocoa works great for extra richness.
- Sunbutter: A creamy, nut-free base that binds everything together. Almond or peanut butter can also be used if preferred.
- Maple syrup: Natural sweetness that balances the cocoa’s bitterness.
- Vanilla extract: Enhances the overall flavor and brings warmth.
- Milk of choice: Adds moisture and helps the mixture come together. Any milk (dairy or non-dairy) works here.
- Dark chocolate chips + coconut oil: Melted together for that glossy brownie “frosting.”
- Mini rainbow chocolate chips: The signature cosmic touch! They are fun, colorful, and kid-approved!
Dietary Substitutions
- Gluten-free: Use certified gluten-free oat flour and protein powder.
- Dairy-free/Vegan: Choose a dairy-free protein powder, non-dairy milk, and vegan dark chocolate chips.
- Nut-free: Stick with sunbutter (as written) to keep them safe for nut-free environments.
How to Make Easy Cosmic Brownie Energy Bites
- Combine Dry Ingredients: In a large mixing bowl, stir together oat flour, protein powder, and cocoa powder.
- Add Wet Ingredients: Add in the sunbutter, maple syrup, vanilla, and milk. Mix until a thick dough forms. If it feels too dry, add a splash more milk.
- Shape into Balls: Roll the mixture into bite-sized balls and place them on a parchment-lined baking sheet or plate.
- Prep the Frosting: In a microwave-safe bowl, melt the dark chocolate chips with coconut oil in 30-second intervals, stirring in between until smooth.
- Dip & Add Sprinkles: Dip each bite with the melted chocolate. While the chocolate is still wet, sprinkle with rainbow mini chocolate chips.
- Chill: Place in the fridge for about 20–30 minutes, or until the chocolate sets. Enjoy!






Dietitian Tips for Success
- Adjust the texture, if needed. If your dough feels too sticky, add a tablespoon of oat flour at a time until it firms up.
- Let little hands help decorate! They’ll love adding the rainbow chips, and it is a great way to get them involved.
- Make them ahead! Double the batch and freeze half for grab-and-go snacks later.
How to Serve Them
These brownie energy bites are delicious on their own, but they also make a perfect lunchbox addition or pre-gym snack. Pair them with a glass of cold milk, a banana, or a handful of berries for a balanced snack.

Storage Suggestions
Store your cosmic brownie protein bites in an airtight container in the refrigerator for up to 1 week.
For longer storage, freeze them in a single layer before transferring to a freezer-safe bag or container. They’ll keep for up to 3 months. Thaw in the fridge overnight or at room temperature for 10–15 minutes before eating.
Frequently Asked Questions
Absolutely. Any nut or seed butter works, just know that the flavor will vary slightly.
Yes! Especially when made with sunbutter, they’re a nut-free, school-friendly snack.
Yes! These cosmic brownie protein bites are nutrient-dense, contain healthy fats and fiber, and can help keep your energy up during the day.
You can, but it’s what gives them that cosmic brownie magic! For a lighter version, drizzle the chocolate instead of dipping, and place the sprinkles on the drizzled chocolate so they stick.

More Snack Recipes to Try
- Pumpkin Protein Bars
- Kiwi Blackberry Smoothie
- Healthy Snickers Bars
- Chocolate Chip Cookie Dough Protein Bars
- Green Protein Smoothie

Easy & Healthy Cosmic Brownie Energy Bites
Ingredients
- 1 cup oat flour
- ½ cup chocolate protein powder
- 6 tablespoons unsweetened cocoa powder
- ½ cup sunbutter
- ¼ cup maple syrup
- 1 tablespoon vanilla extract
- ¼ cup milk of choice
Frosting
- 1 cup dark chocolate chips
- 2 tablespoons coconut oil
- ½ cup mini rainbow-colored chocolate chips for topping
Instructions
- In a large mixing bowl, stir together oat flour, protein powder, and cocoa powder.
- Add in the sunbutter, maple syrup, vanilla, and milk. Mix until a thick dough forms. If it feels too dry, add a splash more milk.
- Roll the mixture into bite-sized balls and place them on a parchment-lined baking sheet or plate.
- In a microwave-safe bowl, melt the dark chocolate chips with coconut oil in 30-second intervals, stirring in between until smooth.
- Dip each bite with the melted chocolate. While the chocolate is still wet, sprinkle with rainbow mini chocolate chips.
- Place in the fridge for about 20–30 minutes, or until the chocolate sets. Enjoy!






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