Put popped popcorn in a large bowl and keep warm. In a 2 1/2-quart saucepan, combine yogurt, brown sugar and corn syrup.
Cook and stir over medium heat to hard ball stage (250 degrees Fahrenheit on candy thermometer). Pour over popped popcorn, stirring to coat.
Yield: 2 1/2 quarts.
Recipe compliments of the Popcorn Board