Couture restored the lead late shortly before the second period ended. He lost the puck trying to bring it out from behind the net, but Nick Spaling, back in the lineup in place of an injured Joel Ward, kicked it right back to Couture; he kicked the puck from his skate to his stick, pulled it around Markstrom's right pad and tucked it inside the far post.
Couture scored his second goal 44 seconds into a lengthy two-man advantage, beating Markstrom between the legs after being left alone in the slot to set up a chance for a feat his coach had no idea he hadn't already done.
"It was a surprise for me. They were talking about it on the bench, somebody said he's got 20 two-goal games, hasn't had three, so nice for him to get that," DeBoer said. "He could have had six or seven goals in the last three or four games, he's just been a little snakebit. It's a good time of year for him to get the monkey off his back."
It was the 13th goal this season for Couture, who has missed 30 games with injuries. San Jose is 29-13-5 with Couture in the lineup and 14-15-1 without him.
"We're a different team with him," DeBoer said, "and our record reflects that."