The 19-year-old opened the scoring at the Liberty Stadium, with two further goals from Jonathan de Guzman making the result safe for Michael Laudrup's side.
And the Welsh defender, who is now the club's youngest-ever Premier League goalscorer, has revealed that Swans assistant manager Erik Larsen played a large part in his strike.
|25/1||Davies is 25/1 to score anytime against Chelsea in the Capital One Cup|
"It was a great feeling. Once I got in that position I wanted to make sure my shot was on target and to see it go in was an unbelievable moment.
“All the boys congratulated me after the game and I think they were all pleased to see me get a goal."
The youngster also revealed that he decided to treat himself to an expensive gift after his goal against the Potters.
He added: “I thought I deserved to treat myself a little bit. So I got myself a new car and I’m happy with it. I think I better stop turning up for training on a Friday if I’m scoring on a Saturday!”