This victory lifts City up to third in the League in a successful week which has also seen them qualify for the Uefa Cup.
Boss Mark Hughes said, "I'm delighted with the performance, especially after our exertions in Europe in midweek.
"We were excellent from start to finish and got the goals when we needed them.
"I'm delighted for Shaun. It's great day for him and I'm sure he'll remember that performance for a long time.
"He's written his own story today and will rightly grab all the headlines."