Walnut Caramels

Directions

1. Line a 13x9-in. pan with foil; grease foil with 2 teaspoons butter.
2. In a large heavy saucepan, combine cubed butter, sugar, 1 cup cream and corn syrup. Cook and stir over medium heat until a candy thermometer reads 238° (soft-ball stage). Stir in remaining cream very slowly so that mixture does not stop boiling.
3. Using a pastry brush dipped in water, wash down the sides of the pan to eliminate sugar crystals. Cook and stir until thermometer reads 245° (firm-ball stage).
4. Remove from heat; stir in walnuts and vanilla. Immediately pour into prepared pan (do not scrape saucepan). Let stand until firm, about 5 hours or overnight.
5. Using foil, lift candy out of pan; remove foil. Using a buttered knife, cut caramel into 1-in. squares. Wrap individually in waxed paper; twist ends.