Moen one handle kitchen faucet handle removal

Chances are corrosion has kept them together. Try some WD40 in the hole and heat a bit with a hair dryer. Sometimes you need a lot of upward pressure.

Try lightly but rapidly jiggling it...

I would suggest to spray some vinegar inside the hole leave it to soak then try jiggling an pull up, good luck.

John

Wiggle it out

Milo