Brossoit was named the CHL goaltender of the week on Tuesday after helping the Edmonton Oil Kings reach the second round of the Western Hockey League playoffs.
He posted a 4-1 record with two shutouts, a goals-against average of 0.76 and save percentage of .968 as the Oil Kings beat the Kootenay Ice in five games in the first round.
The native of Surrey, B.C., finished the WHL regular season third in goals-against average (2.25), sixth in save percentage (.917) and seventh in wins (33) and shutouts (five).
He was selected by the Flames in the sixth round, 164th overall, of the 2011 NHL draft.
The Flames also recalled defenceman Brett Carson from the Abbotsford Heat from the American Hockey League.
Carson has six goals and five assists in 26 games with the Heat this season. He has two goals and 10 assists over 80 career NHL games.
Carson will help cover some holes on the Flames' blue-line. Defenceman Derek Smith has been placed on injured reserve due to a knee injury sustained on Monday in Edmonton. And Mark Giordano will not travel with the team as his wife is due to give birth.