Im trying to think of some movie from the 80's. Im pretty sure it involved a pretty hot witch (the antagonist) and some kids. The main kid I think trying to save someone or himself from this witch. I guess teenagers.. and a big mansion... and I swear something about milk sticks out in my head. At first I thought it was Troll, but I happen to just see that on TV and it wasn't. I also want to say there was a lot of greenery and vines in the house. Any ideas?

Elvira, Mistress of the Dark (1988)

nah not elvira. This was some random b movie I guess. Not that elvira wasn't B but it wasn't elvira. Hah thanks though

If the movie you're thinking about had a group of teenage boys helping a sexy witch paint a mansion and she would serve them milk and cookies while they took a break from working, then it is elvira. If I remember correctly the kids were trying to save her from the town by showing them that she wasn't a bad person.