The victory was be sweetrevenge for Blackburn, who lost 5-0 at Stamford Bridge in the Premier League, and a real tonic for manager Sam Allardyce as he recovers from heart surgery.
Saracens can now look forward to a Heineken Cup semi-final against Munster at the Ricoh Arena in Coventry after a victory which will be sweetrevenge for the 30-3 defeat they suffered at the hands of the Ospreys in the EDF Energy Cup last month.