Come on, Mom, It's just one cookie. Not before dinner, Sophie.
5 seconds sound clip from the Halloweentown movie soundboard.
You can hear this line at 00:06:10.584 in the Blu-ray version of the movie.
Quote context
[...]
- Shh! What are you trying to do? You know how talking about Dad always bums Mom out.
- Come on, Mom, It's just one cookie. Not before dinner, Sophie.
- Marnie's right. You never let us do anything fun.
- Oh, you can have a cookie after dinner.
- I want that cookie. I really want that cookie.
- Good thing she doesn't like liver, eh, dear?
[...]