A. There aren't any sugar cookies in the house
orB. There are sugar cookies in the house & I eat them.
I opened up all the of the windows in case it was some rare form of carbon monoxide that the carbon monoxide detector didn't pick up. I vaguely wondered if it was like my reeses pieces sign earlier in the year. I left the room thinking that it would go away. I came back & the smell was even stronger & I started wondering if a domovoi had taken up residence.
Then I wondered if perhaps Keebler elves had started living in the walls & one of them had died. I looked in the phone book to see if there was some kind of Keebler elf exterminator. There is not. Yes, I am just that disturbed by the smell of cookies when there aren't any cookies to be found. Finally, after hours of deep soul & cupboard searching it was pointed out to me that this was under the kitchen sink:
Yes, let's make garbage smell really yummy & edible. That's just a brilliant idea.