In the spirit of eating real whole food...

https://smittenkitchen.com/2017/03/peanut-butter-swirled-brownies/

I just made these and they were amazing. I used all natural peanut butter so instead of swirls I had peanut butter chunks. I also used wheat flour and maple syrup instead of the sugar.

So delicious! I don't know or care about the calorie content. 😄