Mark Cowie wants the “desire” of his Fraserburgh players to carry them to another cup triumph.
The Aberdeenshire Cup holders beat Formartine United 5-4 on penalties after a fiercely-contested 3-3 draw at Pitmedden.
His side twice had to come from behind but were ultimately the better team.
And Cowie called it one of the best performances of his managerial career.
He said: “Some of the football we played was excellent.
“As I’ve said before, we’re a cup team and it’s great being a cup team, it shows you that desire.
“You don’t need to be the best team in the league – if you show desire, you can beat anybody.
“We outfought them and I thought we were fitter than them, hungrier than them, especially in the first-half where I thought we outplayed them.”
Formartine’s Conor Gethins opened the scoring early with a fantastic diving header from Scott Barbour’s left-wing cross.
But Fraserburgh pulled it back after a great first-half display.
Graham Johnston’s vicious corner was met at the back post by the stooping Russell McBride.
After the break, the hosts caught the holders cold again as Graham Rodger expertly steered Neil McVitie’s cross into the bottom corner on the volley.
Substitute Paul Campbell pulled it back to 2-2 after scoring with an superb curling effort packed with power.
The scoring continued in extra-time as Dean Cowie drilled a low shot beyond Andrew Reid to give Fraserburgh their first lead of the night.
But after 104 minutes, a 20-yard free kick from home skipper Paul Lawson was deflected in to make it 3-3.
Penalties were required and it was Lawson who saw his effort saved by Paul Leask.
Kris Hunter was frustrated with Formartine’s defending and admitted they were not the better side.
He said: “Fraserburgh deserved to win the game.
“It was a close game between two good sets of players but they have kept their nerve and we haven’t.”
In the other quarter-finals, Buckie Thistle cruised to a 5-1 win at Keith as John McLeod’s hat-trick took his tally to 10 goals in three games.
Andrej Kleczkowski also notched a brace as Turriff beat Huntly 4-0 on the road.