PITTSBURGH -- Dominik Kahun had two goals and an assist in a 6-1 win for the Pittsburgh Penguins against the Toronto Maple Leafs at PPG Paints Arena on Saturday.
"I think, as a team, it's huge that we finally got two points again," Kahun said. "That was big for us. For me, I say it all the time, I just try to work hard every game and sometimes I get rewarded for that, like tonight."
Bryan Rust also had three points (one goal, two assists) and Tristan Jarry made 32 saves for the Penguins (11-7-2), who are 1-1-1 in three games without center Sidney Crosby (core muscle surgery). Evgeni Malkin and Jake Guentzel each had a goal and an assist.
[WATCH: All Maple Leafs vs. Penguins highlights]
Kasimir Kaskisuo made 32 saves in his NHL debut for Toronto (9-9-4), which is 0-4-1 in a season-long five-game winless streak. The Maple Leafs lost a back-to-back by a combined score of 10-3. They lost 4-2 to the Boston Bruins on Friday.
"We didn't play hard enough for long enough," Maple Leafs coach Mike Babcock said. "In the end, as an athlete, you put on your sweater. You want to be proud of how hard you compete and how hard you play for one another. We didn't look after that.
"We have to take a look at each other and get this fixed. No one on the outside is going to fix it. We have to fix it."
Video: TOR@PIT: Kahun slips wrist shot through traffic
Guentzel put the Penguins ahead 1-0 on a power play at 6:38 of the first period, scoring on a rebound off a shot from Alex Galchenyuk. It was Pittsburgh's first power-play goal at home since Oct. 10 against the Anaheim Ducks.
Malkin made it 2-0 at 8:44 by using his skate to collect a pass from Guentzel for a snap shot from the slot. He has eight points (two goals, six assists) in seven games since returning from missing 11 games with a lower-body injury.
"Usually everyone in the rink can hear it when [Malkin] wants [the puck]," Penguins coach Mike Sullivan said. "I think that's an indication of just how invested he is into the game. When he's feeling it, he tends to be vocal."
Video: TOR@PIT: Malkin snaps transition goal between circles
Kahun scored on a wrist shot from above the right face-off circle 52 seconds into the second period, extending the lead to 3-0 before scoring again at 4:32.
The second goal from Kahun was originally waved off because of goaltender interference. Following a challenge from Pittsburgh, it was ruled Maple Leafs defenseman Jake Muzzin caused Penguins forward Brandon Tanev to contact Kaskisuo.
Jared McCann pushed it to 5-0 on a snap shot blocker side at 7:28 before Jason Spezza cut it to 5-1 with a wrist shot at 14:49.
Video: TOR@PIT: McCann completes 3-on-2 rush with score
Rust scored a shorthanded goal at 3:54 of the third period for the 6-1 final.
"It's unacceptable the way we played tonight," Maple Leafs captain John Tavares said. "The way we went out there and played obviously isn't close to what our standard is, our expectation, and what we need to do to get the results we want."
They said it
"I felt like they battled for me, but things just didn't work out today. Yeah, of course, it's going to be emotional and kind of crazy playing in your first game with how things go, so it's good to have their support and know they're going to battle for you until the end." -- Maple Leafs goalie Kasimir Kaskisuo
"We knew we had to play hard defensively and kind of pay attention to the details because their team's got a lot of skill. I think we did well tonight." -- Penguins forward Bryan Rust
Need to know
Toronto allowed at least six goals in regulation for the second time this season. It lost 7-3 to the Tampa Bay Lightning on Oct. 10. ... Maple Leafs forward Auston Matthews had his six-game point streak end. He had 11 points (three goals, eight assists) during that stretch. ... Forward Trevor Moore did not travel with the Maple Leafs after sustaining a shoulder injury Friday. ... Penguins forward Nick Bjugstad did not play after sustaining a lower-body injury during a 2-1 loss to the New Jersey Devils on Friday. Sullivan said Bjugstad continues to be evaluated. ... Pittsburgh defenseman Kris Letang and forward Patric Hornqvist have started skating on their own, Sullivan said. Letang is week to week with a lower-body injury; Hornqvist is out longer term with a lower-body injury. ... The Penguins recalled forward Joseph Blandisi from Wilkes-Barre/Scranton of the American Hockey League on Saturday. He played third-line center in place of Bjugstad. ... Pittsburgh scored first for the first time since Oct. 29, when they had four first-period goals in a 7-1 win against the Philadelphia Flyers. ... McCann's goal was his 100th NHL point.
Maple Leafs: At the Vegas Golden Knights on Tuesday (10 p.m. ET; ESPN+, ATTSN-RM, TSN4, NHL.TV)
Penguins: Host the New York Islanders on Tuesday (7 p.m. ET; ESPN+, ATTSN-PT, MSG+, NHL.TV)
Video: Penguins score six goals to defeat Maple Leafs