The 20-year-old joined the Reds in January on an initial one-month loan from the Premier League side and scored once in four matches.
The big forward picked up the sponsor's Man of the Match in the Reds' 2-1 win on Saturday and told barnsleyfc.co.uk "I'm very happy to sign until the end of the season. I've enjoyed the last month so far. I can hopefully keep myself in the team and learning things to take back with me at the end of the season.
"I've certainly learned things that I need to work on to make me a better player."
