Chop a head of broccoli. Rinse broccoli, set to dry out completely. This step is very important, otherwise, the broccoli will come out soggy. Mince Garlic. Place garlic, olive oil, salt & pepper in a Ziploc bag. shake it up until broccoli is well coated. Spread out unto cookie sheet ( if grilling set on grilling sheet.) cook for 30+ minute's until broccoli is crunchy.