Appiah scored for Ghana in a 3-0 win against Olhanense.
Alan Pardew has taken over at Crystal Palace recently and one area he is reportedly keen to improve is in the striker position.
Plenty of names are being mentioned, with one possibility being that a formerly loaned out player could be that striker. Glenn Murray has been on loan at Reading but once banged in the goals for Palace before injury and being inexplicably dropped got in the way of his progress.
But he is not the only goal-getting striker returning from a loan spell.
Appiah's form has been so impressive it even earned him a call-up to the Ghana national team. He was included in the 31 man provisional squad for the Black Stars' African Cup of Nations onslaught.
And he got off to a great start. In an 'unofficial' debut against Portuguese side Olhanense he bagged the second of three goals for Ghana in a 3-0 win, netting in between strikes from Christian Atsu and Jordan Ayew.
At the age of 24 Appiah is coming to the point where he must make his case at Palace or move on permanently, if he can shine in Equatorial Guinea, he might just be the answer to Alan Pardew's prayers.