Finally, I found my lost brownie recipe! I actually found it by chance in my wallet and I don't know how it got in there.
Anyway, this recipe is originally from my recent favorite book, and after some modifications, I came up with my own.
WARNING: Don't be fooled by the photo. These brownies my not look appealing to you, but they are extremely chewy! To make them even more chewy, I used some whole-wheat cereals instead of walnuts. So, if you don't want to be on the high-chewiness side, just use some walnuts, hazelnuts, or simply nothing.