Baker is in his second season with the Dutch outfit.
"I'm really enjoying it and I'm enjoying my football too. That's the most important thing for me at the moment – that and to get as much game time as possible," he told chelseafc.com.
"Off the pitch I'm completely settled now. The area, the people, it feels like home because I've been here over a year.
"I did okay last year. I came back this season to be a more important player, to get more goals, more assists and to be more important for the team. Everyone knows Holland is a very technical league and it has really improved my skills, more than it has in other places I've been. I have kicked on."