This peanut butter chocolate lava cake recipe is made with a food processor and is perfect for those who love the combination of peanut butter and chocolate. The batter is made by combining dark chocolate, butter, sugar, eggs, flour, cocoa powder, and peanut butter in the food processor until smooth. The batter is then poured into ramekins and baked until the edges are set but the center is still gooey. When the cakes are inverted onto plates, the warm chocolate and peanut butter center oozes out, creating a decadent dessert that is sure to satisfy any sweet tooth.