1 stick butter
1 (16 oz.) pkg. marshmallows
1 tsp. vanilla
4 qts. popped popcorn

In a large kettle melt butter and marshmallows together on low heat. Beat well with a wooden spoon. Add vanilla and beat again for 10 to 15 seconds. Add approximately 4 quarts freshly popped popcorn to the marshmallow mixture. Butter your hands and form the mixture into balls.