The Slender Brownie™ Mix

The Slender Brownie™ Mix


Low sugar, chocolate fudge brownie mix

Diabetic Suited

Soy Free






Flexible to fit your lifestyle - swap, pause or cancel at any time! Find out more

Fast, free delivery

Formulated by leading experts

Fast, free delivery

Formulated by leading experts

Product Description

Protein World Slender Brownie™️ Mix makes 8 scrumptious chocolate fudge brownies. Our uniquely formulated Chocolate Fudge Brownie mix takes the difficulty and hassle out of healthy home baking.


To whip up your protein brownies all you need to do is add the wet ingredients and bake in the oven, all in under 20 minutes. Then get ready to enjoy a heavenly, no added sugar, high protein brownie snack that can be consumed at any time of day!


With this tasty treat containing 5g of protein, only 0.3g of sugar and all the taste of a delicious chocolate brownie, we know you'll never fall of track again.

Nutritional Information

How to use

All you need is: 1 large egg, 4 scoops water (100ml), 1.5 scoop melted coconut oil (35ml), baking tin line with parchment paper.


Prep -Preheat the oven to (180°C / 160°C Fan / 350°F / Gas Mark 4). Melt 2 large tablespoons of coconut oil and allow it to cool for 1 minute. Line your tin with parchment paper.

Make: Mix the egg, water, coconut oil (1.5x scoops) and the whole pouch of brownie mix together until well blended. Spread evenly into your parchment lined tin.

Bake: Bake in the centre of the oven for 10-11 minutes or until a toothpick inserted in the centre comes out with moist crumbs attached. For gooey brownies cook for only 10 minutes. Transfer the brownies into the fridge for at least 30 minutes before cutting and serving. This makes them extra fudgy. Trust us it’s worth the wait!

Bakers Tip - To ensure accurate measurement of the coconut oil, add two large tablespoons to a jug and heat in the microwave for 30 seconds until melted. Once in liquid form you can measure out 1.5 x scoops to add to the mix.


Wheat Flour (Wheat Flour, Calcium Carbonate, Iron, Niacin, Thiamine), Polydextrose, Cocoa Powder, Whey Protein Concentrate (Milk), Maize Starch, Raising Agents (Sodium Bicarbonate, Calcium Phosphate), Natural Flavouring, Salt, Sunflower Lecithin (Emulsifier), Sweetener (Sucralose).

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Customer Reviews

Based on 23 reviews

The Slender Brownie™ Mix

Delicious brownies

Just baked them, and they are delicious for someone who wants a treat , and is also aware that the Taste is never going to be the same as a regular butter plain flour one. So to all of the people who wrote it s awful taste etc... You are more than welcome to eat normal one if you don’t count your intake calories trough out the day. I love it, wanted to eat the whole bake ... Also, the pancake, love them soo so much.
Thank you for making it easy for us, and thank you for trying for us.
You got yourself a loyal customer.
Kind regards.


I love it i baked yesterday and still have some today.I use coconut oil....the cake is soft and tasty.

Bit rubbery

Taste was nice but texture was rubbery.

Hey Sophie - If you try folding the mix until it's just all incorporated - and try not to over mix it - this should help your cake be more fluffy :) PW