[header] How to make key lime pie [title] Preheat the oven to 375ºf/190ºc. [title] Put the graham crackers in a plastic bag. [step] Roll them into crumbs, using a rolling pin. You should have about 1 1/2 cups of crumbs when finished. 
[substeps] If you don't have a rolling pin, get creative. A can of cooking spray or a bottle of wine (or heck, a shoe) gets the job done.