1/2cupcreamy peanut butteryou can use natural or regular
Instructions
Preheat the oven to 350 and if using the brownie edge pan spray with bakers joy or grease and flour well. If using a regular 9x13 pan, line it with heavy duty foil or parchment and spray that with oil spray or bakers joy.
In a large bowl, whisk together the cocoa powder, water and instant espresso. Chop the unsweetened chocolate and add that and allow to sit for 5 minutes to soften, then whisk until melted.
Melt the butter and combine with the oil. Add to the mixture and whisk. It will look curdled a bit and that is ok. Now whisk in the eggs, yolks, vanilla and salt.
Add the sugar and whisk well until it is dissolved. Gently fold in the flour and the chocolate chips and spread or portion batter into whatever pan you are using.
Microwave the pb for 20 seconds to loosen it up, then scoop blobs of peanut butter onto the brownie batter and swirl with a knife. Bake for 20-35 minutes, depending on your oven and pan. You want the center to be just barely set when you pull them out. Cool before cutting or removing from the pan. These store well at room temp and also freeze really well.