- **Protein powder:** I used Devotion chocolate protein powder. Other brands may change the texture and moisture.
- **Sweetener:** The protein powder is already sweetened. Adjust the sweetness in a future batch if needed; don’t taste raw batter.
- **Pumpkin:** Use plain pumpkin puree, not pumpkin pie filling. It adds moisture without adding pumpkin pie spices.
- **Texture:** These are lighter muffins with no added oil or butter. Mix gently and avoid overbaking for the best texture.
- **Black cocoa:** The combination of regular and black cocoa gives a deeper chocolate flavor. You can use all regular cocoa if needed.