With six ingredients you likely already have in your pantry, this recipe promises the comfort and nostalgia of a peanut butter and jelly sandwich in a moist cake -- in only ten minutes. Great for nights in when you're looking for a little something sweet, this peanut butter-forward cake doused in a jammy syrup cooks in about two minutes in the microwave. Take this dessert to the next level with a scoop of ice cream scooped right in the center: T…