"He is an exciting young prospect and something different to what we have, which is important. He's dynamic and can mix up his game," Burnley boss Sean Dyche said.
"He was with us at Watford last year and was then called back and went into Fulham's first team, which is obviously a good sign. He has started this season in the Premier League and got himself a couple of goals.
"That's one of the key things. We do look after players here. We look to develop our own and anyone who joins us."