Johnny Gaudreau posted two goals and one assist as Boston College doubled up Northeastern, 6-3, in the championship of the 61st annual Beanpot from TD Garden.
Steven Whitney had a goal and two helpers for the Eagles, who set a new school record for consecutive tournament victories.
"We have a great group of guys, and better people for a lot of years now...but this is special, a four-bagger," said BC head coach Jerry York immediately following the victory.
Patrick Brown, Bill Arnold and Pat Mullane also tallied to back a 20-save performance from Parker Milner, who was given the Eberly Trophy as the top goaltender.
Freshman sensation Kevin Roy -- who won tournament MVP honors -- notched a pair of scores in defeat for the Huskies, who are still seeking their first crown since 1988 after losing to BC for the third time in the last five title games.
Chris Rawlings allowed all six goals on 30 shots in the setback.
Arnold registered the first goal of the contest, coming with 9:07 left in the second period, one-timing a Kevin Hayes feed home from the right wing.
BC took a 2-0 lead 1:15 later as Gaudreau slammed a loose puck home from inside the crease while being squashed against Rawlings.
Roy halved the Huskies' deficit inside of five minutes left in the period, and less than two minutes later was robbed on a breakaway by a sweeping glove save by Milner.
It was 3-1 for the Eagles at 18:37 on a shot which trickled over the goal line, this time a double deflection credited to Brown off a left-point floater from Isaac MacLeod. Whitney then added a marker that beat the buzzer for a 4-1 BC edge after 40 minutes.
Roy made it 4-2 only 11 seconds after the start of the third, and Northeastern got within a goal on a Braden Pimm power-play score at 3:56.
But the defending champs clamped down and extended their edge when Michael Matheson and Gaudreau worked a perfect give-and-go in close and the Eagles led 5-3 with 5:23 to play.
The desperate Huskies pulled Rawlings with over two minutes while shorthanded, and the move backfired when Mullane scored into the empty net with 1:28 left.
"It's unbelievable...just to be a part of this. I think that's more important than us winning out fourth in six, was them (the freshman) getting their first," Mullane said. "We never let any doubt creep into our game."
Earlier on Monday, Luke Greiner netted a hat trick as Harvard bested Boston University, 7-4, in the consolation game.
Marshall Everson added a pair of scores, while Dan Ford and Danny Biega added one each for the Crimson, who finished in third place for the third consecutive season. Peter Traber allowed four goals, but made the difference by stopping 43 pucks.
Wade Megan, Mike Moran, Evan Rodrigues and Cason Hohmann tallied for the Terriers, who finished fourth for the second time in three years. Sean Maguire allowed six scores on 30 shots in defeat.