Combine evaporated milk and cocoa in saucepan. Cook and beat over low heat until cocoa in dissolved. Add butter, sugar replacement, salt and vanilla extract. Bring to a boil; reduce heat. Cook for 2 minutes. Remove from heat; add cereal crumbs and work in with wooden spoon. Cool 15 minutes. Divide in half; roll each half into a tube 8 inches long. Roll tubes in finely chopped nuts. Wrap in waxed paper; chill overnight. Cut in 1/4 inch slices. Yield: 64 slices