Goals from Josh McQuoid, Shaun Brisley and leading scorer Britt Assombalonga saw Peterborough defeat Chesterfield 3-1 at Wembley on Sunday to claim the club's first cup in their 90-year existence.
In front of watching father Sir Alex, who claimed 16 pieces of silverware at Wembley during his illustrious career at Manchester United, it was also Ferguson junior's first trophy as a manager.
It maintained Peterborough's unbeaten record at Wembley following their successes in the 1992 and 2000 play-off finals and Ferguson is hoping Posh will be back at the national stadium in just under two months' time as they seek an immediate return to the Championship.
The London Road club were one of the favourites to go up at the start of the season following relegation from the second tier but Ferguson's side have failed to keep up with the blistering pace set by Wolves, Brentford and Leyton Orient at the top of Sky Bet League One.
Posh currently occupy the final play-off spot and, after their victory over Chesterfield, Ferguson would now fancy his side against any of their top-six rivals.
"We've got a good record at Wembley and if we got back here again I'd really be confident," said Ferguson.
"It's come at a good time for us and hopefully it will really energise us again because once you've had a taste of Wembley you want to get back here.
"It will give us an advantage having already been here. I know other teams have been here in the past but with the play-off final only a few weeks away this experience could really play into our hands.
"We're confident of remaining in the play-offs, although it won't be easy.
"I don't think many clubs will want to play us in a one-off game, I really don't.
"I find our players are always calm in these kind of situations. We do tend to win a lot of big games - here at Wembley, play-off semi-finals and the final at Old Trafford and, of course, we managed to stay in the Championship.
"That kind of big-game mentality will stand us in good stead for the rest of the season, especially if we get back here."