Place in a food processor or blender; process into fine crumbs.
My yield would of been higher except my daughter kept eating the toasted crust before I got them processed.
Some cool information from Better Homes and Gardens
*1 slice of bread will yield 1/4 cup fine dry crumbs.
*To make 1 cup of cracker or cookie crumbs, you'll need 28 saltine crackers, 14 graham cracker squares, 22 vanilla wafers, 19 chocolate wafers, 15 gingersnaps or 24 rich, round crackers (such as Ritz).