peanut butter and jelly bars

Well, my brother in law's brother (Sten) has been staying with my sister and my brother in law. He just moved here from New Zealand. Tonight, my family and I are having them over and making a nice sit down dinner. So I decided to make something homemade for after dinner. I was looking online for something that I could make that I already had the ingredients to. I already made chocolate chip cookies just a few days ago, and the night prior I had made brownies. My options were kinda limited because my kitchen aide stand mixer is broken. I wanted to make chocolate peanutbutter bars, but my Mum can't stand peanutbutter and chocolate together, so I decided to go with this recipe that I saw when I was watching Barefoot Contessa. It had everything to make it, so I made these bars. Oh no, hopefully Sten isn't allergic to nuts! Didn't think about that one! Guess we'll find out.