The Nittany Lion backline has yet to concede a goal in tournament play so far.
The 5-3 victory marks Penn State's first victory in Yost Ice Arena since 2019 and first conference win this campaign.
The Nittany Lions took their final home game in dominant fashion.
Allen had two rushing touchdowns, which powered the Nittany Lions to a 27-6 victory over the Scarlet Knights.
"He gave everyone in that room a chance and an opportunity."
"Nobody flinched, and I think it shows how tough this group is, mentally and physically."