Cosmic Brownie Protein Dessert Cups (No Bake, 5 Ingredients, Sugar Free)
/If you grew up eating Little Debbie Cosmic Brownies, you know the appeal — dense, fudgy chocolate brownie base, thick chocolate frosting, rainbow sprinkles. The kind of thing you could eat three of before your brain registered that you were eating them.
These cosmic brownie protein dessert cups are that same experience, rebuilt from scratch with five clean ingredients, zero baking, zero added sugar, and a full serving of chocolate protein powder in every cup. The base is thick and fudgy — not cakey, not dry, not protein-powdery — and the Lily's milk chocolate frosting on top sets into a glossy, slightly firm layer that you eat through with a spoon. Topped with dye-free rainbow sprinkles for the full cosmic experience.
Ten minutes to make, one hour to chill, and then you have three individual dessert cups in the fridge waiting for you. Dessert every night. That's the whole point.
Why you'll love these cosmic brownie protein cups
Only 5 ingredients
No baking, no oven, no cooking
Made with chocolate protein powder — actually high protein
Sugar free: Lily's chocolate chips + monk fruit sweetener
Dye-free sprinkles for the cosmic brownie look
Ready in 10 minutes, set in 1 hour
Individual portions — perfect for meal prep desserts all week
Gluten free
A Note on the Protein Powder — This Part Matters
Not all protein powders behave the same way in a no-bake recipe like this, and the type you use will significantly affect the texture of the base. Here's what you need to know:
Chocolate whey or whey-casein blend: the best texture. Whey protein absorbs moisture well and creates that thick, dense, brownie-like consistency you're looking for. A whey-casein blend (like Just Ingredients or some other cleaner brands) is especially good because the casein thickens further as it chills.
Plant-based protein powder: works but may produce a slightly grainier or drier texture. If using plant-based, start with 3 tablespoons of almond milk instead of 3 and add more a tablespoon at a time until the batter is thick but smooth. Pea protein tends to work better than brown rice protein for this application
Chocolate flavor is non-negotiable: use chocolate protein powder, not vanilla. Vanilla protein powder won't give you the deep fudgy chocolate flavor and the cups will taste more like a vanilla almond bite with chocolate on top. The chocolate protein is doing half the flavor work here.
Clean ingredients: look for a protein powder with a short ingredient list — the protein source, natural flavors, maybe a sweetener. Avoid anything with a lot of fillers, gums, or artificial sweeteners that leave an aftertaste. Since this is a dessert, the protein powder flavor will come through more than it does in a smoothie.
My protein powder pick
Clean Simple Eats Chocolate Brownie Batter — Whey Isolate Protein Powder, Naturally Sweetened, Zero Added Sugar, 20g 100% Grass Fed Protein Powder with Digestive Enzymes, Gluten Free, and Non GMO
Whatever brand you use: if your protein powder is already sweetened, reduce or omit the monk fruit sweetener in the base and taste before adding more.
Ingredients
BROWNIE BASE
1/2 cup chocolate protein powder
2 tablespoons almond butter — one ingredient only: almonds. No oils, no sugar, no additives.
2 tablespoons Lakanto Granulated Monk Fruit Sweetener
3 tablespoons unsweetened almond milk to start — add more 1 tablespoon at a time until you reach the right consistency
LILY'S CHOCOLATE FROSTING
1/4 cup Lily's Milk Chocolate Style Baking Chips — no sugar added
1 tablespoon unsweetened almond milk
TOPPING
Dye-free rainbow sprinkles — I used Supernatural Rainbow Nonparelis, Dye-free Sprinkles
Why one-ingredient almond butter?
The almond butter is the fat and the binder in this recipe — it's doing the job that butter or oil would do in a traditional brownie. If you use an almond butter with added oils (palm oil, canola oil) or added sugar, both the texture and the flavor will be different. One ingredient almond butters are stir-required (the oil separates naturally) — make sure yours is fully stirred before measuring. Here is the brand I used.
How to Make Cosmic Brownie Protein Dessert Cups — Step by Step
Make the brownie base. In a medium bowl, combine the chocolate protein powder, almond butter, monk fruit sweetener, and 3 tablespoons of almond milk. Stir vigorously with a fork or spatula until everything is fully combined into a thick, uniform batter. It should be thick enough to hold its shape when pressed — like a dense brownie batter, not runny. If it's too dry and crumbly, add almond milk one tablespoon at a time and stir until you reach the right consistency. If it's too loose, add a teaspoon of protein powder at a time.
Divide into containers. Divide the brownie base evenly between your 3 glass bowls, ramekins, or containers. Press the base down firmly and evenly using the back of a spoon or your fingertips. You want an even layer across the bottom with no gaps or air pockets.
Make the Lily's chocolate frosting. Add the Lily's milk chocolate chips and 1 tablespoon of almond milk to a small microwave-safe bowl. Microwave in 30-second intervals, stirring between each, until the chips are fully melted and the mixture is smooth. It should be thick and glossy — not runny, not stiff. This is your frosting. If it looks too thin, let it cool for 2-3 minutes at room temperature and it will thicken as it cools.
Frost the cups. Divide the melted chocolate frosting evenly between the 3 cups, spreading it over the brownie base in an even layer. Use the back of a spoon to smooth it out to the edges. Work quickly — the frosting starts to set as it cools.
Add sprinkles. Before the frosting sets, add a generous sprinkle of dye-free rainbow sprinkles over each cup. Press them in very lightly so they adhere to the chocolate surface. This is the cosmic brownie moment — don't skip the sprinkles.
Refrigerate. Place the cups in the fridge for at least 1 hour, or until the chocolate frosting has fully set and the base has firmed up. The base will firm significantly in the fridge. For a softer, more mousse-like texture, 1 hour is perfect. For a firmer, denser brownie texture, refrigerate for 2+ hours or overnight.
Eat. Serve straight from the fridge with a spoon. Dig through the chocolate layer into the fudgy base underneath. That's the whole experience.
Getting the batter consistency right
The most common issue with this recipe is batter that's too dry or too wet — and it depends on your specific protein powder and almond butter. Some protein powders absorb more liquid than others. Some almond butters are thicker than others.
You want the batter to be: thick enough that it holds its shape when pressed into the cup and doesn't spread, but wet enough that it's smooth and pliable — not crumbly or dry. Think: the consistency of a very thick brownie batter or a soft cookie dough. If in doubt, err on the side of slightly wetter — it will firm up significantly in the fridge.
The Lily's Chocolate Frosting — Why It Works
The frosting layer is what makes these taste like a cosmic brownie and not just a protein ball in a cup. Here's why Lily's specifically works so well:
No sugar added. Lily's uses stevia and erythritol to sweeten their chocolate chips, which means the frosting has zero added sugar. Combined with the monk fruit in the base, this entire recipe has no refined sugar.
Milk chocolate style is the right call here. Lily's makes both dark chocolate and milk chocolate chips. For the cosmic brownie frosting, milk chocolate is the right choice — it's sweeter, creamier, and more similar to the original Little Debbie frosting. Dark chocolate works too but the frosting will taste slightly more bitter.
The almond milk is key. Adding 1 tablespoon of almond milk to the melted Lily's chips transforms it from a thick, solidifying chocolate coating into a spreadable frosting. Without the almond milk, the chocolate sets too quickly and too thick to spread evenly. With it, you get a glossy, spreadable consistency that sets into a perfect frosting layer.
Don't overheat. Lily's chips can seize up if overheated. Microwave in 30-second intervals and stir well between each one. They should melt smoothly — if you see the chocolate clumping or looking grainy, you've overheated it. Add a tiny splash of additional almond milk and stir vigorously to bring it back.
Storage
Refrigerator: store covered in the fridge for up to 5 days. The texture actually improves after the first day — the base firms up and the flavors develop. These are genuinely better on day 2 than day 1.
Meal prep tip: make a double batch on Sunday — 6 cups covers dessert for the entire week. Store covered in the fridge and eat one each night. This is exactly the kind of recipe that makes eating this way sustainable — having something genuinely satisfying and sweet waiting for you in the fridge every night is what makes you not reach for something else.
Variations
Make them bigger or smaller
Double the batch and use 4 oz ramekins for 8 individual portions — great for a week of meal prep. Or use a standard muffin tin with silicone liners for 6 smaller cups. The ratio of base to frosting stays the same regardless of size.
Dark chocolate frosting
Swap the Lily's Milk Chocolate chips for Lily's Dark Chocolate chips for a more intense, less sweet frosting. The dark chocolate version pairs especially well with a base made from an unsweetened or lightly sweetened protein powder.
Add a crunchy element
Stir 2 tablespoons of crushed dye-free cereal or a sprinkle of cacao nibs into the frosting before it sets for a crunch that mimics the candy-coated sprinkles on the original cosmic brownie. Crushed Lily's chocolate chips also work.
Peanut butter version
Substitute peanut butter (one ingredient: peanuts only) for the almond butter for a peanut butter cosmic brownie cup. Add a thin swirl of additional peanut butter on top of the frosting before it sets for a Reese's-meets-cosmic-brownie moment.
Make it dairy-free
This recipe is already dairy-free as written — Lily's milk chocolate style chips are not actually dairy-free (they're made in a facility that processes dairy and contain milk). For a fully dairy-free version, use Lily's Oat Milk Chocolate chips or another dairy-free sugar-free chocolate chip brand. The almond butter base is naturally dairy-free.
Frequently Asked Questions
Can I use vanilla protein powder instead of chocolate?
Technically yes, but I'd recommend against it for this specific recipe. Chocolate protein powder is doing half the flavor work in the base — it's what makes the cup taste like a brownie rather than a protein ball. Vanilla protein powder will produce a lighter, less chocolatey base. If you only have vanilla, add 1 tablespoon of unsweetened cocoa powder to the base to compensate for the lost chocolate flavor.
What if my batter is too dry?
Add almond milk one tablespoon at a time, stirring after each addition, until the batter is thick but smooth and holds together when pressed. Different protein powders absorb different amounts of liquid — you may need anywhere from 3 to 6 tablespoons total depending on your brand.
What if my batter is too wet?
Add a teaspoon of protein powder at a time and stir until the batter thickens. You can also add a teaspoon of almond flour to help absorb excess moisture without changing the flavor significantly.
Do the dye-free sprinkles taste different from regular sprinkles?
Slightly — dye-free sprinkles are typically sweetened with natural colorings (beet juice, turmeric, spirulina) and can have a very mild earthy undertone if you eat them alone. On top of the chocolate frosting you genuinely cannot taste any difference. They look slightly more muted in color than neon conventional sprinkles but are honestly just as festive. India Tree makes excellent dye-free sprinkles — widely available on Amazon and at Whole Foods.
Can I use a different sweetener instead of monk fruit?
Yes — any granulated zero-calorie sweetener works: Swerve Granulated, allulose, or erythritol all substitute 1:1. If your protein powder is already sweetened, taste the base before adding sweetener and add only if needed. You can also omit the sweetener entirely and rely on the sweetness of the protein powder and Lily's chips.
Is this recipe keto?
Very close to keto-friendly. The primary carbs come from the Lily's chocolate chips (which use sugar alcohols that don't spike blood sugar) and trace amounts in the protein powder and almond butter. Net carbs per cup are very low — exact count depends on your specific protein powder brand. With a keto protein powder and Lakanto monk fruit, these are as close to keto as a dessert cup gets.
How many servings does this make?
The recipe as written makes 3 servings in 8 oz containers. See the 'what size containers to use' section above for how to adjust the yield. The recipe doubles easily — use 1 cup chocolate protein powder, 4 tablespoons almond butter, 4 tablespoons monk fruit sweetener, and 6+ tablespoons almond milk for 6 full-size cups.
More Healthy Desserts
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Cosmic Brownie Protein Dessert Cups (No Bake, Sugar Free)
These no-bake cosmic brownie protein dessert cups are made with chocolate protein powder, almond butter, and Lily's chocolate frosting. Only 5 ingredients, sugar free, fudgy.
Ingredients
Instructions
- Make the base. Mix protein powder, almond butter, monk fruit sweetener, and 3 tablespoons almond milk until a thick batter forms. Add more almond milk 1 tablespoon at a time if needed — batter should be thick but smooth, not crumbly.
- Divide. Press evenly into 3 glass bowls, ramekins, or jars.
- Make the frosting. Melt Lily's chips and 1 tablespoon almond milk in 30-second microwave intervals, stirring until smooth and glossy.
- Frost. Spread frosting evenly over each cup.
- Sprinkle. Add dye-free sprinkles before frosting sets.
- Chill. Refrigerate at least 1 hour until set. Serve cold.
Notes
- Use chocolate protein powder — vanilla doesn't produce the same fudgy brownie flavor
- One-ingredient almond butter only — added oils or sugar changes the texture
- Batter consistency varies by protein powder brand — adjust almond milk accordingly
- Better the next day — refrigerate overnight for the best texture
- Double the batch: 1 cup protein powder, 4 tbsp almond butter, 4 tbsp sweetener, 6+ tbsp almond milk → 6 full-size cups
