There is one on the Taste website and the recent Donna Hay mag has a step by step recipe.
I trialled the Taste one on the weekend - it was really yummy but I did have some *ahem* stuctural/construction issues (related to me rather than the recipe). My DD had a great time helping and then sang 'There's no house anymore' for 3 days after it fell down. So a success nonetheless....
Good luck - I am hoping to try again this weekend.