You can taste-test these on Tuesday if you're going to the picnic. Posting this also reminds me that I have to stop somewhere and buy graham crackers. I've probably made about two dozen batches of these since I first got the recipe a couple years back (yes, they're that requested) and this recipe got my 9-year old a blue ribbon at the Erie County 4-H Cook-Off this year (it's an easy recipe - he made them himself with my supervision). The kicker? I've never eaten one of them. I don't like chocolate. *hides*
You will need:
1 family-sized box brownie mix (whatever brand you prefer)
1 "sleeve" plain graham crackers
1 cup chocolate chips
2 cups miniature marshmallows
Preheat oven to 350F.
Prepare the brownie mix as directed on the package.
Spray bottom of a 9x13 pan with cooking spray. Line bottom of pan with graham crackers. Pour brownie mix over the top of the crackers; bake as directed on box (about 28 minutes).
When brownies are done, remove the pan from the oven, but don't turn the heat off.
Sprinkle marshmallows and chocolate chips on the top of the brownies. Return the pan to the oven for about 5 minutes to melt the chips a bit and brown the marshmallows.
Cool completely and cut into squares to serve.