Caramel Popcorn
["1/2 c. Karo syrup", "1 c. brown sugar", "1 stick butter", "3 qt. popcorn", "1/2 tsp. vanilla", "1/2 tsp. baking soda"]
["Melt butter, brown sugar and Karo in 1.5-quart saucepan. Bring to a boil; let boil 5 minutes without stirring. Remove from heat. Add vanilla, then baking soda. Stir until mixture rises. Pour over popcorn. Put in 2 baking pans (sprayed with Pam) in 250\u00b0 oven for 1 hour. Stir every 15 minutes."]
["syrup", "brown sugar", "butter", "popcorn", "vanilla", "baking soda"]