brown sugar, lightly packed
Divide popcorn and nuts between 2 ungreased rectangular pans, 13x9x2 inches.
Cook brown sugar, margarine, corn syrup and salt over medium heat, stirring occasionally, until bubbly around edges.
Continue cooking 5 minutes; remove from heat.
Stir in baking soda until foamy.
Pour over popcorn and nuts, stirring until corn is well coated.
Bake uncovered in 200 degree oven, stirring every 15 minutes, 1 hour.
SUBSTITUTIONS: May use walnut halves or blanched whole almonds in place of pecans.