It was my husband's birthday on May 30th, and he L-O-V-E-S peanut butter cups. I was SOOO lucky to have found Bakerella's Peanut Butter Cup Cake recipe (originally from Family Circle magazine- but I think her version is better!) Try it, and you'll be hooked! Thanks, Bakerella!
If you want the recipe, visit Bakerella at her blog! She's awesome!