High Protein Snacks

Fudgey One-Bowl Protein Brownies

These quick, easy, one-bowl protein brownies will have you coming back time and time again.

These fudgey protein brownies are so easy to make that you’ll be whipping up a batch in less time than it takes you to get to the gym. Simply grab a mixing bowl, add your ingredients and pop the batter into the oven for quick, healthy, protein brownies that rival your favourite junk food.

Using avocado in place of butter means you’ll still get super-fudgey protein brownies that are low in saturated fat and brimming with heart-healthy monounsaturated fats, plus extra vitamins and minerals. And trust us – you won’t be able to taste the difference!

Click to jump straight to the nutritionals.

Makes: 8 brownies

Prep time: 5 minutes

Cook time: 15 minutes

Total time: 20 minutes


Protein brownies


  1. Begin by preheating your oven to 150˚C/170˚C for fan-assisted. Next, line an 8” square baking tray with greaseproof paper.
  2. In a medium-sized mixing bowl, mash in the ripe avocado and whisk in the eggs. Mix until no large lumps remain.
  3. Now stir in the Sugar-Free Syrup. Add in the cocoa powder and stir until fully incorporated, then stir the flour and whey protein until just incorporated. Next, add the chocolate in by smashing it up into small pieces and fold them into the mixture.
  4. Now spread the batter into the tray evenly. Bake for 15-20 minutes (15 minutes yields the fudgiest protein brownies, whereas 20 minutes yields cakier protein brownies).
  5. Once baked, allow to cool for 30 minutes, cut into 8 squares and serve.

Enjoy these protein brownies?


Fudgey One-Bowl Protein Brownies

Nutritional Facts

Amount per serving

Calories 151kcal 72 Calories from Fat
% Daily Value *
Total Fat8g12%
Total Carbohydrates12g4%

Jennifer Blow

Jennifer Blow

Writer and expert

Jennifer Blow has a Bachelor of Science in Nutritional Science and a Master of Science by Research in Nutrition, and now specialises in the use of sports supplements for health and fitness, underpinned by evidence-based research. Jennifer has been quoted or mentioned as a nutritionist in major online publications including Vogue, Elle, and Grazia, for her expertise in nutritional science for exercise and healthy living. Her experience spans from working with the NHS on dietary intervention trials, to specific scientific research into omega-3 fatty acid supplementation and also the effect of fast foods on health, which she has presented at the annual Nutrition Society Conference. Jennifer is involved in many continuing professional development events to ensure her practise remains at the highest level. Find out more about Jennifer’s experience here: https://uk.linkedin.com/in/jennifer-blow. In her spare time, Jennifer loves hill walking and cycling, and in her posts you’ll see that she loves proving healthy eating doesn’t mean a lifetime of hunger.