Chocolate Brownie Protein Bar

Here is a homemade chocolate brownie protein bar recipe that is low in sugar, cheap to make, and is only around 100 calories per slice!

This recipe shows how you can make a batch for the week ahead which is a great money-saving hack.

What Are Low Calorie Protein Bars?

Protein bars can be very convenient when you are looking for a healthy snack before or after the gym, or if you are looking for a chocolate bar alternative that is healthier.

Let’s face it, protein bars are expensive and can easily add to your monthly expenses if you’re not too careful. However, making them yourself is more budget-friendly.

With this recipe, you can make 14 chocolate brownie protein bars which you can keep stored in the fridge and eat on the go.

Or you could make 8 chocolate brownie bars that are gooier, thicker, and ideal for dessert.

Why you will love these chocolate brownie protein bar recipes?

  • Super cheap to make and a great way to save money buying protein bars.
  • Only 100 calories per protein bar and low sugar (when you divide them into 14+ servings).
  • Takes just 10 minutes to prep.
  • Alternative to drinking protein shakes or eating chocolate bars.


Side view of chocolate brownie protein bars

Chocolate Brownie Protein Bar

Learn how to make your own chocolate brownie protein bars in a large batch. Low in calories, low in sugar, cheap to make and healthy.
5 from 1 vote
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Course Snack
Cuisine American
Servings14 protein bars
Calories (per serving)100 kcal



  • To a mixing bowl, add the protein powder, cocoa powder, mashed bananas, peanut butter, eggs, vanilla extract, baking powder, lemon juice and salt. Stir vigorously and add almond milk as you go along.
  • Once it reaches a smooth texture, add the chocolate chips.
  • Line your baking tray with parchment paper and add coconut oil.
  • Add the chocolate brownie mixture to the baking tray.
  • Bake for 25 minutes on 200°c / 400°f.
  • Remove from oven and allow to stand for 5 minutes.
  • Slice into 14 protein bars (or 8 protein bars if you want them thicker).
  • Keep stored in an air-tight container and keep in fridge for a week.


  • Don't store this in-room temperature because they will go off quickly. Keep it stored in the fridge and air-tight container, and they will last for up to a week.


Serving: 1protein barCalories: 100kcalCarbohydrates: 10.2gProtein: 5.4gFat: 4.8gSaturated Fat: 1.5gPolyunsaturated Fat: 0.4gCholesterol: 27.3mgSodium: 195.3mgFiber: 1.8gSugar: 4.9g
Read more nutritional information values.

Data source: USDA

Keyword chocolate protein snack, homemade protein bars, protein bars
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Recipe Tips

Keep these stored in an air-tight container or freezer bag in the fridge for 7 days. It might keep well for longer but I would not know because they are usually all gone by then. I have kept these for more than a week, and they have been fine.

Recipe FAQ

How To Make these protein bars vegan-friendly?

You will need to use a vegan chocolate flavor protein powder and use flax eggs instead of regular eggs.

Are these protein bars keto-friendly?

Each slice is 10.2 grams of carbohydrates with 1.8 grams of fiber. This will not do harm if you are on a keto diet but remember this is just one slice. You could use a calorie free sugar replacement to keep the carbohydrates low.

I do not have bananas, what else can I use?

The mashed bananas are used to sweeten the chocolate brownie bars and add flavor. You can another sweetener such as honey, maple syrup or a calorie-free sweetener like stevia.

Are chocolate brownie protein bars good for you?

These bars can be good for you in many ways. For example, if you are looking to lose weight, these bars are low in calories and carbohydrates which can be a good replacement for chocolate bars. These can also be good for you if you are regularly working out or going to the gym by providing you energy pre or post workout.

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