Now for the evil, mean, nasty and corrupt part of the wish.
After eating it, the sweet potato reacted with your digestive juices, together with the pastry and created an enormous balloon inside you. It became sooooooo big you floated skyward without any control whatsoever. You were at the mercy of the wind.
You floated so high you entered commercial airspace, were duly noted on radar and as you didn't have a transponder to squawk your identification, the USAF were scrambled immediately thinking you were a terrorist attack. The pilot who saw you couldn't believe her eyes, you looked sooooo gorgeous, but orders are orders. She locked on you, her target and deployed the missiles in order to avert a tragedy. You unfortunatelywere blown to smithereens at 38,000 feet.
The silver lining to this evil corruptness is, your remains settled in a paddock and was used as good fertilizer.
I wish I was genius