Dark Chocolate Peanut Butter Swirl Brownies

This is really just a variation on the Peanut Butter Swirl Brownies I posted a few weeks ago, but as with so many things, it’s amazing what an difference a few of small tweaks can make.

I liked the original recipe but felt that the batter was insufficiently chocolate-y and was slightly too cake-like. The flavors also seemed kind of one-note.