Heat oven to 250 degrees Fahrenheit.caramelcorn

Pop 1 cup of popcorn and put it in a buttered roast pan.

Melt 1 cup of butter.  Stir in 2 cups brown sugar,1/2 cup corn syrup and 1 tsp salt.

Bring to a full boil stirring constantly.  Let mixture boil for 5 minutes and remove from heat.  Do Not Stir.

Stir in 1/2 tsp soda and 1 tsp vanilla. Pour over popcorn and mix together well.

Bake for 1 hour stirring every 15 minutes.  Spread out onto parchment paper to cool.