Andrew Shaw broke a tie with one of Chicago's three third-period goals, and the NHL-leading Blackhawks cooled off the Dallas Stars with a 5-2 win at United Center.
Marian Hossa sealed Chicago's sixth straight victory with an empty-net tally and added two assists.
Blackhawks captain Jonathan Toews had a goal and one helper, while Ray Emery improved to 16-1-0 this season with a 16-save effort.
Jamie Benn supplied both goals for Dallas, which had its winning streak halted at five games. Richard Bachman stopped 23 shots in the setback that leaves the Stars two points out of a playoff spot.