If you grew up loving those iconic cosmic brownies – the fudgy chocolate base, thick chocolate frosting, and colorful candy sprinkles – these no bake Cosmic Brownie Protein Bars are about to bring all the nostalgia back, with a much better-for-you twist. Rich, chocolatey, and irresistibly soft, they taste like the treat you remember, but with added protein to keep you satisfied long after the last bite.

These bars are everything a good no-bake dessert should be: easy to make, deeply chocolatey, and secretly nourishing. The brownie base is dense, fudgy, and melt-in-your-mouth soft, with just the right amount of sweetness. Thanks to protein powder and wholesome ingredients, they feel indulgent without the sugar overload that usually comes with classic brownies.

Because this recipe is completely no bake, it’s perfect for busy days, warm weather, or anytime you want a homemade treat without turning on the oven. Everything comes together in one bowl, then gets pressed into a pan and chilled until firm. Simple, quick, and almost impossible to mess up.

The chocolate frosting layer is where the magic really happens. Smooth, rich, and glossy, it spreads beautifully over the brownie base and sets into a thick, creamy topping that makes these bars feel bakery-worthy. Finished with rainbow candy-coated chocolate sprinkles, they get that classic cosmic brownie look – and that fun, nostalgic vibe we all love.

What makes these bars truly special is how satisfying they are. The added protein helps balance the sweetness and keeps you fuller for longer, making them a great option for post-workout fuel, afternoon cravings, or a healthier dessert that still feels like a treat. One bar is enough to hit the spot, which isn’t always the case with traditional brownies.

These no bake Cosmic Brownie Protein Bars are also perfect for meal prep. Make a batch at the start of the week and keep them in the fridge or freezer for whenever a chocolate craving hits. They are great straight from the fridge for a soft, fudgy bite, or slightly frozen if you love a firmer, chewier texture.

Whether you are feeding your inner child, looking for a protein-packed chocolate fix, or just want an easy dessert that tastes far more indulgent than it is, these cosmic brownie bars check every box. They are fun, nostalgic, rich, and deeply chocolatey – proof that healthier treats can still feel exciting. 🤎

Cosmic Brownie Protein Bars (No Bake)

Rich, fudgy, and loaded with nostalgic chocolate flavor, these no bake Cosmic Brownie Protein Bars feature a soft brownie base, creamy chocolate frosting, and colorful candy sprinkles for that classic cosmic look. Packed with protein and made without baking, they are the perfect indulgent-yet-nourishing snack or dessert. 🌈🍫

Course Breakfast, Dessert, Lunch, Snack

Cuisine Healthy Clean Eating

Keyword chocolate protein cosmic brownie recipe no bake, clean eating dessert or snack, cosmic brownie protein bars no bake, cosmic brownie protein bites, healthy cosmic brownie protein bars, homemade healthy cosmic brownie protein bars

Servings 12

Ingredients

Fudgy Brownie Base

• 1 1/2 cups almond flour
• 1/2 cup chocolate protein powder
• 1/4 cup cocoa powder
• 1/4 cup maple syrup or honey
• 1/4 cup coconut oil or butter, melted
• 2-3 tablespoons milk of choice
• 1 teaspoon vanilla extract
• Pinch of salt

Chocolate Frosting

• 1 cup dark or semi-sweet chocolate chips
• 1/2 cup Greek yogurt or coconut cream
• 1-2 tablespoons maple syrup or honey (optional, to taste)

Topping

• Rainbow candy-coated chocolate sprinkles

Instructions

• Line an 8 x 8-inch baking pan or dish with parchment paper on the bottom and sides leaving some overhanging to act as a handle to get the bars out easier for cutting. Or can make in a parchment paper lined muffin pan, silicon muffin pan or silicon bar mold.

  In a medium bowl, mix almond flour, protein powder, cocoa powder and salt until well combined.

  Add maple syrup, melted coconut oil, milk, and vanilla extract. Stir until a thick, fudgy dough forms.

  Press the mixture evenly into the prepared pan, smoothing the top firmly. Place in the fridge while making the frosting.  

Chocolate Frosting

• Place chocolate chips in small dish and microwave with 15 second bursts stirring between each one until melted and smooth.

  Or use double boiler method - (pot of boiling water with a bowl resting on top) melt the chocolate chips and the coconut oil together.

  Stir Greek yogurt (or coconut cream) into the melted chocolate until glossy and creamy.

  Spread the frosting evenly over the chilled brownie base.

  Sprinkle generously with rainbow candy-coated chocolate sprinkles.

  Refrigerate for 1–2 hours, or until fully set.

  Slice into 12 bars or more smaller squares and store bars in an airtight container in the fridge for up to 1 week or freezer for up to 3 months. Let frozen bars sit for a few minutes before eating for the best texture.

Print Recipe

If you are looking for more delicious, healthy, protein-rich, no bake desserts and treats to help you reach your health, wellness and fitness goals, you will love my collection here: Blended Bites