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Air Fryer High Protein Chocolate Brownie

This quick air fryer recipe delivers a fudgy chocolate brownie with a significant protein boost using whey and casein powders. It is a convenient option for those looking to manage their macros without giving up dessert.

6 minCook time
8 minTotal time
1Serving
EasyDifficulty

Instructions

  1. Mix Dry Ingredients

    In a bowl, combine the flour, protein powder, brownie mix, sweetener, and baking powder. Mix well to avoid clumps.
  2. Combine Wet Ingredients

    Add the Greek yogurt, maple syrup, and egg to the dry mixture.
  3. Make Batter

    Stir until a thick brownie batter consistency is reached.
  4. Melt Chocolate

    Microwave the mini chocolate chips for 45 seconds until melted.
  5. Add Fillings

    Fold the melted chocolate chips into the batter.
  6. Prepare Pan

    Spray a 6.5-inch cast iron skillet with non-stick spray.
  7. Portion Batter

    Pour the batter into the skillet and spread it evenly to cover the whole pan.
  8. Cook

    Place in an air fryer set to 275 degrees F and cook for 6 minutes. (Alternatively, bake in an oven at 350 degrees F for 8-10 minutes).
  9. Cool and Serve

    Remove and let cool briefly before serving.

Tips

Letting the brownie cool for a bit after cooking helps the middle set while remaining fudgy.

Video

“Air Fryer Protein Fudge Brownie! | High Protein, Low Calorie & Only 8 Minutes to Make!” by Flexible Dieting Lifestyle, watch on YouTube.

About this recipe

This recipe combines chocolate protein powder with brownie batter mix and Greek yogurt to create a dense, fudgy treat. The use of sugar-free maple syrup and zero-calorie sweetener keeps the calorie count low while maintaining a rich flavor. It is ready in a short time, making it a practical choice for a post-workout snack or a light afternoon treat.

The brownie bakes in a cast iron skillet, which helps contain the batter and adds a rustic presentation. You can finish it in an air fryer or a conventional oven. Allowing it to cool for a few minutes after baking helps the center set slightly while keeping the interior moist.

Published November 2, 2026.