Set aside 1/4 cup of the graham cracker crumbs in a bowl. Combine evaporated milk, cocoa and butter in a saucepan. Bring to a boil. Remove the saucepan from heat. Stir in graham cracker crumbs, vanilla, Equal and nuts. Mix well. Set aside until cool enough to handle. When mixture cools, shape into 1 inch balls. Roll the balls in the reserved graham cracker crumbs. Store in refrigerator until ready to eat.
Makes 36 servings.