The England star scored twice as the Blues earned a stunning 3-0 victory over PSG in Sunday's (13.07.25) final and feels that the win should silence those doubting manager Enzo Maresca and the players.
Palmer told DAZN: "He’s building something special, something important with a young team. Everyone’s talked a lot of s*** about us all season, but I feel like we’re going in the right direction."
The Chelsea talisman said it was a "great feeling" to perform so well in a game in which Champions League winners PSG were heavily fancied to come out on top.
Palmer said: "Obviously it’s a great feeling, even better because everyone doubted us before the game. We knew that and to go out there and put a fight on like we did against a great team, yes, it’s good.
"The gaffer put a great gameplan out. Obviously he knew where the space was going to be and he tried to free me up as much as possible, and I just had to repay him and score some goals."
Maresca was delighted with his team and felt that the game was won in the early stages as Chelsea overwhelmed their opponents in New Jersey.
The coach said: "No words for the players. They deserve [this]. It’s a good moment.
"For me, we won the game in the first 10 minutes. In the first 10 minutes, we set the tempo, we set the way we wanted to play. We were very good.
"Unfortunately with the weather conditions, it is not easy to continue for 90 minutes, but I think we won the game in the first 10 minutes."
Maresca is now "excited" for the new Premier League season, although his squad will be taking some time off before the campaign begins next month.
The Italian manager said: "Yes, very excited, but a bit more excited that we have three weeks off now."