Oreo cupcakes made the easy way: use a boxed cake mix (white cake), and store bought frosting. Line each cupcake liner with an "opened" Oreo. Add crushed Oreos to the batter and as a topping on the icing.
Oreo Crunch Cupcakes: White or Vanilla Cake Mix prepared as directed. Add crushed Oreo Cookies to cake mix. Put 1 Oreo in bottom of cupcake liner then pour in batter. Bake as directed, about 15 min @ 350.