30-Minute Caramels
["1 (14 oz.) can sweetened condensed milk", "1 1/2 c. light corn syrup", "1 c. granulated sugar", "1 c. firmly packed brown sugar", "1/2 c. butter", "1/4 tsp. salt"]
["Butter a 9-inch square baking pan; set aside.", "In a heavy 4-quart saucepan, combine milk, corn syrup, sugars, butter and salt.", "Place over medium heat and stir with a wooden spoon until mixture comes to a boil.", "Clip on candy thermometer.", "Stirring constantly to prevent scorching, cook to 240\u00b0 or soft ball stage. Pour into prepared pan.", "Cool at room temperature until firm.", "Cut into 1-inch squares.", "Wrap in waxed paper.", "Optional:", "Add 1 cup nuts before pouring into cooling pan."]
["condensed milk", "light corn syrup", "sugar", "brown sugar", "butter", "salt"]