Chop nuts very finely in food grinder or food processor (a salad shooter works great, put through twice.) Should have 1 cup of ground nuts. Cookies should also be chopped very finely. Combine crumbs, chopped nuts and sugar, and mix thoroughly; drizzle with melted butter and mix lightly. Press onto bottom and 4 cm up side of springform pan. Note 1: Requires about 25 vanilla wafers to make 0.75 cups crumbs. Note 2: Any type of dry, unfilled, unfrosted cookies may be used for the