3 quarts freshly popped plain popcorn, unseasoned
1/2 cup (1 stick) butter or margarine
1 cup sugar
1/2 teaspoon salt
1/4 cup light corn syrup
1/2 teaspoon peppermint extract
1/8 teaspoon green food coloring (optional)
Arrange popcorn in a shallow baking or roasting pan. Melt butter in a 2-quart saucepan.
Stir in sugar, salt and corn syrup. Cook, stirring constantly until sugar dissolves and mixture boils. Boil, without stirring, for 5 minutes. Remove from heat and add peppermint extract and green food coloring.
Pour over popcorn in baking pan and stir to mix well. Bake in a preheated 250-degree oven for 1 hour, stirring 3 to 4 times. Cool completely and store in tightly covered containers