The Belgian striker joined the PL 100 club in March at home to Swansea City and has since taken his tally to 105 goals.
With four goals this season, Lukaku is the joint second-highest scorer behind Eden Hazard, and hopes to top the list at the end of the season.
"You always compete every year against [Sergio] Aguero and [Harry] Kane, and [Mohamed] Salah this year," he says in the video above, after receiving his Premier League Milestone award for reaching a century of goals.
"You always think about [the Golden Boot], being a striker.
"But then, while I want to score as much as I can, I want to win championships. That's why I signed for Manchester United."
With his strike against Watford last weekend, Lukaku overtook the tally of 104 goals reached by his former Chelsea team-mate Didier Drogba, whom he views as an important part of his development as a forward.
"He's been a part of my process really from day one until now," says Lukaku. "We talk almost every day."