Thomas Tuchel's side recovered from Champions League extra-time heartbreak against Real Madrid by coasting past Crystal Palace to reach a third successive FA Cup final on Monday (AEST).
Ruben Loftus-Cheek struck with 25 minutes remaining as he slammed in his first Chelsea goal since May 2019, while Mount made sure of victory with a second nine minutes later.
The pair became the first English duo to score in a club game at Wembley for the Blues since Peter Houseman and Ian Hutchinson netted in the 1970 FA Cup final against Leeds United.
However, Mount does not have too many fond memories of England's national stadium, where he has lost an EFL Cup and two FA Cup finals, along with the Euro 2020 showpiece with England.
The 23-year-old was also a part of Derby County's Championship play-off final side that lost to Aston Villa in 2018-19, taking his tally at Wembley to five losses – a record he wants to overturn.
"It is a game we used to bounce back. It was a very, very tough game. They made it very difficult for us. They have some top players. It wasn't easy," he told ITV Sport after the game.
"The way we came through it we showed character.
"I am buzzing for Rubes [Loftus-Cheek]. He is a top, top player. He comes on in a difficult game and steps up. He is dominant and the way he drives the ball forward helps us. He was brilliant today.
"Timo Werner is brilliant, he has done so well the last couple of games. He had a chance in the second half that he missed but then ran all the way back to win the ball and that shows the player he is.
"It is time for us to win a final at Wembley. It is five finals I have lost, so we have to put the pressure on us to step up."
Chelsea now have to overcome Liverpool, who defeated the Blues on penalties in the EFL Cup final in February.
Indeed, it will be just the second time two sides will contest both the EFL Cup and FA Cup final in the same campaign after 1992-93, when Arsenal and Sheffield Wednesday did so, with the Gunners winning both trophies that year.