The stalwart rolled back the years with an irresistible display as Rovers defeated Yeovil Town 1-0.
Goals were the only thing lacking from Dunn's performance, with his manager delighted regardless.
"Dunny has got quality that I don't think many in this division can match," said Bowyer.
"I think he could have had a hat-trick in the first half, he was just a little bit disappointed with that.
"We told him to keep running at them, and it is his run in the second half that sets the goal up along with Adam Henley who did magnificent in it as well."
Rovers are back in action this Boxing Day when Sheffield Wednesday are the visitors to Ewood Park.
Tickets are currently on open sale with prices from £19 for Adults, £12 Seniors and £7 Juniors. Book online today at www.onerovers.co.uk
and collect your tickets from the Blackburn End collection point at the end of the game.