Buy the ingredients!
Boxed vanilla cake mix, maple syrup, peanut butter, cream cheese frosting (I've found if you go to the bakery at the store they will sell this to you by the pound and it's so much better than the canned kind.)
Make the cake mix according to the directions and put it into cupcake liners in a cupcake tin.
Take the cream cheese frosting and add the peanut butter to taste. Start with a little and build up so the frosting is not too strong.
Take a cupcake once it's cooled and put it on a plate. Drizzle a little maple syrup over it and then frost them with that oh so yummy peanut butter cream cheese frosting!