Microwave Caramel Corn

We are headed to the Chargers/Chiefs game this weekend (let's go SD!!) and we are tailgating with a group of fifty plus! It should be a good time. The hosts are bringing all the main stuff and we were asked to bring a snack/side of some sort. I decided on caramel corn and used the recipe one of the other Foods teachers at schools uses with her Food 1 students-- easy and quick and really good! I made three batches, check out the ridiculousness:

Microwave Caramel Popcorn

15 c popped corn (unsalted)
1 c brown sugar
1/2 c margarine or butter
1/4 c light corn syrup
1/2 tsp baking soda
brown paper grocery sack

Spray paper sack with cooking spray.
Pour popped corn into sack.
In a microwave safe dish, heat sugar, syrup, and butter on high for 5 minutes, stirring after the first and third minutes.
Remove from microwave and stir in soda.
Pour syrup mixture over corn in bag.
Close and shake.
Microwave for 1 1/2 minutes on high (yes, in the paper bag!).
Shake well again.
Pour out on large pan to cool.