Microwave Caramel Corn

Ingredients:
- 1 stick butter
- 1/4 c. white Karo syrup
- 1 c. brown sugar
- 1/2 tsp. baking soda
- 1 tsp. vanilla
- 1/2 tsp. salt
- peanuts (if desired)
- 4 qt. popped corn

Directions:
- Place 4 cups of popped corn in a double brown bag (grocery bag).