To cook crack you need cocaine, water, baking soda, a heat source (microwave, stove, torch, cigarette lighter) and a spoon or a jar of the right thickness. Disregard the occasional splintered jar or finger burn, and the advantages of cooking for yourself are mostly to do with customer service. You’re less likely to get ripped off or have a gun pointed at your head: powder cocaine dealers are easier to find and more reliable.