Caramel Popcorn
["1 c. or 2 sticks butter or margarine", "2 c. firmly packed brown sugar", "1/2 c. light or dark corn syrup", "1 tsp. salt", "1/2 tsp. baking soda", "1 tsp. vanilla", "6 qt. popped popcorn", "unsalted peanuts (optional)"]
["Melt butter in large saucepan.", "Stir in brown sugar, corn syrup and salt.", "Bring to a boil, stirring constantly.", "Boil without stirring for 5 minutes.", "Remove from heat; stir in baking soda and vanilla.", "Gradually pour over popped corn in 2 large, shallow baking or roasting pans.", "Mix well."]
["butter", "brown sugar", "light", "salt", "baking soda", "vanilla", "popcorn", "unsalted peanuts"]