Having the approximate size of a cookie(adjective)
WordNet. Princeton University. 2010.
Use "cookie-sized" in a sentence
"The kids love the chicken rings, which are what you would think: formed/pressed chicken tenders in the shape of cookie-sized rings."
"Stuffed full of spinach salad and cookie-sized fried oysters, I rest my left elbow on the console, leaning toward my grandmother, listening to her talk, watching the pine trees buzz past and her gray-blond wisps floating in the blast of air conditioning."
"MIT grad student David Merrill demos Siftables -- cookie-sized, computerized tiles you can stack and shuffle in your hands."