High protein cosmic brownie

High protein cosmic brownie is a medium American (Fitness‑Focused) recipe that serves 12. 120 calories per serving. Recipe by The Plant Slant on YouTube.

Prep: 15 min | Cook: 20 min | Total: 45 min

Cost: $48.05 total, $4.00 per serving

Ingredients

  • 2 tbsp Black Cocoa Powder (gives deep dark color and rich chocolate flavor)
  • 1 cup Whey Protein Isolate (Chocolate Flavor) (provides the 15× protein boost; choose an unflavored or chocolate version)
  • 1/2 cup Almond Flour (adds moisture and keeps brownies gluten‑free)
  • 1/3 cup Erythritol (or other granulated sweetener) (low‑calorie sweetener; adjust to taste)
  • 4 large Egg Whites (adds structure without extra fat)
  • 1/4 cup Unsweetened Applesauce (replaces oil for moisture and lower calories)
  • 1 tsp Vanilla Extract (enhances flavor)
  • 1/4 tsp Sea Salt (balances sweetness)

Instructions

  1. Preheat Oven & Prepare Pan

    Preheat the oven to 350°F (177°C). Line the baking pan with parchment paper, allowing excess to hang over the sides for easy removal.

    Time: PT5M

    Temperature: 350°F

  2. Combine Dry Ingredients

    In a large mixing bowl whisk together black cocoa powder, whey protein isolate, almond flour, erythritol, and sea salt until evenly distributed.

    Time: PT3M

  3. Add Wet Ingredients

    Create a well in the center of the dry mixture and add egg whites, unsweetened applesauce, and vanilla extract. Whisk until a smooth, thick batter forms. Do not over‑mix.

    Time: PT4M

  4. Transfer to Pan & Smooth Surface

    Pour the batter into the prepared pan. Use the spatula to spread it evenly, tapping the pan gently on the counter to release air bubbles.

    Time: PT2M

  5. Bake

    Bake for 18‑20 minutes, or until the top is set and a toothpick inserted into the center comes out with a few moist crumbs.

    Time: PT20M

    Temperature: 350°F

  6. Cool & Slice

    Allow the brownies to cool in the pan for 10 minutes, then lift them out using the parchment overhang and transfer to a wire rack. Once completely cool, cut into 12 squares.

    Time: PT10M

Nutrition Facts

Calories
120
Protein
12 g
Carbohydrates
8 g
Fat
3 g
Fiber
2 g

Dietary info: High‑protein, Gluten‑free, Low‑sugar, Keto‑friendly (if using erythritol), Vegetarian

Allergens: Eggs, Tree nuts (almond flour)

Last updated: April 18, 2026

Amazon Associates

Amazon Associates PartnerTrusted

As an Amazon Associate, we earn from qualifying purchases made through links on this page. This helps support our site at no extra cost to you. Clicking on ingredient or equipment links will take you to amazon.com where you can purchase these items.

High protein cosmic brownie

Recipe by The Plant Slant

Thick, fudgy brownies packed with 15× the protein of a regular brownie. Made with black cocoa powder for a deep dark color and flavored with a hint of sweetness, these Cosmic Brownies are perfect for fitness enthusiasts who still want a decadent treat.

MediumAmerican (Fitness‑Focused)Serves 12

Shop all ingredients on Amazon in one click • Printable PDF with shopping checklist

Source Video
24m
Prep
20m
Cook
10m
Cleanup
54m
Total

Cost Breakdown

$48.05
Total cost
$4.00
Per serving

Critical Success Points

  • Preheating the oven to the exact temperature ensures proper rise and texture.
  • Sifting black cocoa and protein powder prevents gritty lumps.
  • Do not over‑mix the batter; excessive mixing can make the brownies tough.
  • Watch the bake time closely; overbaking dries out the fudgy texture.

Safety Warnings

  • Handle hot baking pan with oven mitts to avoid burns.
  • Egg whites are raw before baking; ensure they reach safe temperature (160°F) during baking.

Frequently Asked Questions

Everything you need to know about this recipe

Q

What is the cultural significance and history of Cosmic Brownies in the fitness community?

A

Cosmic Brownies originated from the online fitness world as a high‑protein, low‑sugar alternative to traditional chocolate brownies. They gained popularity on platforms like Instagram and YouTube, where creators like The Plant Slant showcase them as a way to enjoy dessert while staying on track with macro goals.

cultural
Q

What are the traditional regional variations of high‑protein brownies in American fitness cuisine?

A

In the United States, fitness‑focused brownies often swap regular flour for almond or oat flour and replace butter with applesauce or Greek yogurt. Some variations add peanut butter swirls, while others use plant‑based protein powders for vegan versions.

cultural
Q

How are Cosmic Brownies traditionally served in the health‑conscious community?

A

They are typically served at room temperature or slightly chilled, cut into bite‑size squares, and sometimes topped with a dusting of cocoa powder or a drizzle of sugar‑free chocolate ganache for extra indulgence.

cultural
Q

What occasions or celebrations are Cosmic Brownies associated with in the fitness culture?

A

Cosmic Brownies are popular post‑workout treats, competition day snacks, and “cheat‑day” indulgences for athletes who still want to meet protein targets while satisfying a sweet craving.

cultural
Q

What makes Cosmic Brownies special or unique in the high‑protein dessert category?

A

The use of black cocoa powder gives them an ultra‑dark appearance and a richer chocolate flavor, while the combination of whey protein isolate and almond flour delivers about 12 g of protein per serving—roughly 15 times more than a regular brownie.

cultural
Q

What are the most common mistakes to avoid when making Cosmic Brownies?

A

Common errors include over‑mixing the batter, which creates a tough texture, and over‑baking, which dries out the fudgy interior. Also, failing to sift the black cocoa and protein powder can lead to gritty lumps.

technical
Q

Why does this Cosmic Brownie recipe use egg whites instead of whole eggs?

A

Egg whites add protein without the extra fat and cholesterol found in yolks, keeping the brownies lower in calories while still providing structure and lift during baking.

technical
Q

Can I make Cosmic Brownies ahead of time and how should I store them?

A

Yes, they keep well in an airtight container in the refrigerator for up to five days. For longer storage, freeze individual squares wrapped in plastic; they reheat quickly in the microwave.

technical
Q

What texture and appearance should I look for when the Cosmic Brownies are done?

A

The tops should be set and slightly cracked, with a matte dark surface from the black cocoa. When you insert a toothpick, it should come out with a few moist crumbs—not wet batter.

technical
Q

What does the YouTube channel The Plant Slant specialize in?

A

The Plant Slant focuses on plant‑based, high‑protein recipes that are designed for fitness enthusiasts. The channel emphasizes tasty, nutrient‑dense meals that help viewers meet their macro goals without sacrificing flavor.

channel
Q

How does the YouTube channel The Plant Slant's approach to protein‑rich desserts differ from other health‑food channels?

A

The Plant Slant combines rigorous macro tracking with indulgent flavors, often using specialty ingredients like black cocoa powder and whey isolate to create desserts that feel like treats rather than diet foods. This balance of taste and nutrition sets it apart from channels that prioritize minimal ingredients over flavor.

channel

You Might Also Like

Similar recipes converted from YouTube cooking videos

High Protein Fudge Brownie Jar
14

High Protein Fudge Brownie Jar

A quick, no‑bake, high‑protein fudge brownie packed in a mason jar. Each jar delivers almost 50 g of protein, dark chocolate chips, and a dusting of cocoa powder for a rich, gooey breakfast treat that can be prepared in about five minutes and set overnight.

10 minServes 1$2
American
The Ultimate Cosmic Brownie Protein Ice Cream Recipe!
10

The Ultimate Cosmic Brownie Protein Ice Cream Recipe!

A macro‑friendly, high‑protein ice cream that tastes like a rich chocolate brownie while staying under 300 calories per pint. Made with Fairlife milk, almond milk, and a blend of protein powders and low‑calorie add‑ins, this recipe uses the Ninja Creami to create a dense, creamy treat you can enjoy every day.

12 hrs 38 minServes 1$85
American
High-protein COTTAGE CHEESE BROWNIE 😯🍫
8

High-protein COTTAGE CHEESE BROWNIE 😯🍫

A quick, gluten‑free, low‑carb brownie that packs about 18 g of protein per serving. Blend cottage cheese, an egg, cocoa powder and your favorite sweetener, then microwave for a fudgy, healthy treat in under 15 minutes.

13 minServes 2$3
American
High protein cottage cheese brownie 😍🍫
13

High protein cottage cheese brownie 😍🍫

A quick, high‑protein, flour‑free brownie made with cottage cheese, cocoa powder, monk‑fruit sweetener and eggs. Microwaved in just 90 seconds, these brownies are perfect for a guilt‑free dessert or post‑workout snack.

12 minServes 2$8
American
Low-Calorie Cosmic Brownie Protein Ice Cream
6

Low-Calorie Cosmic Brownie Protein Ice Cream

A low‑calorie, high‑protein frozen treat that tastes like a dense chocolate brownie. Made with four layers of chocolate flavor, this protein ice cream delivers about 300 calories and 42 g of protein per serving, perfect for fitness enthusiasts and dessert lovers alike.

2 hrs 18 minServes 2$3
American
The BEST cottage cheese brownies! (low carb, high protein)
7

The BEST cottage cheese brownies! (low carb, high protein)

These high‑protein brownies are made entirely in a blender, featuring a gooey molten lava center and a nut‑free sun‑butter topping. With cottage cheese, eggs, chocolate chips, cocoa and plant protein powder, they’re a healthier twist on a classic American treat.

39 minServes 8$46
American