4 quarts popped popcorn 1 cup sugar 1/2 cup packed brown sugar 1/2 cup water 1/2 cup light corn syrup 1 teaspoon white vinegar 1/4 teaspoon salt 1/2 cup butter 8 to 10 drops green food coloring Directions: Place popcorn in a large roasting pan; keep warm in a 250° oven. Meanwhile, in a large heavy saucepan, combine the sugars, water, corn syrup, vinegar and salt. Cook and stir over medium heat until mixture comes to a boil. Cook, stirring occasionally, until a candy thermometer reads 250° (hard-ball stage). Remove from the heat; stir in butter until melted. Stir in food coloring. Drizzle over warm popcorn and toss to coat. Cool. Break into pieces. Store in an airtight container. Yield: 6 quarts.