Caramel Puff Corn

2 sticks butter
1 1/4 c brown sugar
2/3 c corn syrup
1 t baking soda

Melt butter and sugar.  Add in corn syrup.  Mix in baking soda.  Spread over puffcorn.  Bake on cookie sheet at 250 for 45 minutes.  Stir every 15 minutes.