
Penny,
there's only one COOKIE
The Big Bang Theory Season 7, Episode 21

eating COOKIE dough
and watching Princess Bride.
The Big Bang Theory Season 7, Episode 5

If you want someone to guess
chocolate chip COOKIE...
The Big Bang Theory Season 6, Episode 4

You get a COOKIE too.
The Big Bang Theory Season 6, Episode 9

But if I don't eat my lima beans,
I can't have my COOKIE.
The Big Bang Theory Season 3, Episode 14