Last year my friend bought me the Hummingbird Bakery Cake Days book. Everything I have cooked from it has worked brilliantly. When she gave me the book she commented that she liked the sound of the 'Malteser Cupcakes', so for her birthday this year I whipped up a batch. The cake mix and frosting required a lot of different ingredients and I was a little unsure about making up a cake mix with so much liquid, but it worked really well. These were extra scrummy and I will be baking them again.
Due to copyright I won't be writing out the recipe here but I thoroughly reccomend buying this book.