Those Dirty French

Melina: Hey Mommy? Can I have my dessert now?
Me: Sure. What would you like?
Melina: Do we have any ice cream?
Me: Yes, we do.
Melina: Can I have some of that dirty ice cream?
Me: Pardon me?
Melina: I'd like some of that dirty vanilla ice cream.
Me: Oh, you mean French vanilla.
Melina: Yes. Some of that, please.