Baked Caramel Popcorn
["1 c. or 2 sticks butter or margarine", "2 c. firmly packed brown sugar", "1/2 c. corn syrup (light or dark)", "1 tsp. salt", "1/2 tsp. baking soda", "1 tsp. vanilla", "6 qt. popped corn"]
["Melt butter.", "Stir in syrup and brown sugar.", "Bring to a boil, stirring constantly.", "Boil without stirring 5 minutes.", "Remove from heat.", "Stir in soda, vanilla and salt.", "Gradually pour over popped corn, mixing well.", "Turn into a large greased roaster or baking pans.", "Bake at 250\u00b0 for 1 hour, stirring every 15 minutes. Cool completely.", "Break apart.", "Store in tightly covered container.", "Makes 5 quarts."]
["butter", "brown sugar", "corn syrup", "salt", "baking soda", "vanilla", "corn"]