He found all the parts Cuddy needed for her drink, and sent them over to land beside her rum - he had no idea how the different ingredients went together or if there was an order to making it. Cuddy could make her drink, he'd see how she did it, not a problem.
"I am an enigma and a mystery," he agreed, and finished his beer. And then the top shelf bottle appeared in his hand. Fair enough. He grabbed a glass that had floated over from where they were stored, poured himself a generous drink from the mystery bottle, and then sent that over to Cuddy as well.