In large heavy saucepan combine sugar corn syrup butter and half of the cream
Heat to boiling over medium heat stirring constantly
Stir in remaining cream nuts and vanilla
Cook over medium heat stirring occasionally until mixture reaches a temperature of 244 on a candy thermometer small amount dropped into very cold water will form a firm ball
As mixture becomes thick stir constantly
Immediately pour mixture evenly into a well buttered 8-inch square pan
Let stand until cool
Cut into 1-inch squares
Wrap individually in waxed paper or plastic wrap Yields 64 candies about 1 12 pounds