Spray a large, shallow roasting pan with vegetable spray. Mix popcorn and
peanuts in roasting pan.
In a heavy 2 quart saucepan, cook corn syrup, sugar and margarine over
medium heat, until the mixture boils, stirring constantly. Stir in
chocolate and continue to cook for 5 minutes or until the chocolate is
completely melted and the mixture has thickened. Remove from heat and
stir in vanilla. Pour over popcorn and peanuts; stir to coat well.
Bake for 1 hour, stirring occasionally. Pour onto foil and let cool.
Store in tightly covered containers.