You'll need 10 cups of popped popcorn to make these, which we got from using roughly 1/2 cup kernels, popping them the good 'ol fashioned way on the stove. How much oil you use is up to you - I drizzled in about 2 tablespoons, but you could get away with as little as one. You could also use more, but this is what worked for us.
Into those airy bites, we tossed in a handful of squishy miniature marshmallows and heaps of broken graham crackers. To be able to keep everything cohesive, make sure the crackers are not too large - think slightly smaller or the same size as the popcorn, about 1/2" in size. Either use a knife and hack away at the sheets (it will take about 8 to 10 rectangles for the amount needed) or use your hands to snap off small chunks. Rather than a bowl, combine the trio of ingredients in a large roasting pan if you have one - this will give you ample room to stir.
What holds the popcorn balls together? Instead of a boiled sugar syrup that you may be more accustomed to, these are made just like Rice Krispie Bars! Butter, marshmallows and a couple pinches of salt, all melted together, are first spiked with vanilla, then poured all over the popcorn concoction. Stirred to coat, leave the mixture be for a couple minutes so you don't burn your fingerprints off. As soon as it was comfortable, scoops of the popcorn were formed into tidy spheres - just be sure to keep your hands coated with cooking spray (or even better, a smear of butter!) to keep any stickiness to a minimum.
To fulfill the S'mores aspect, chocolate needs to make an appearance, right? Instead of working chunks or chips of chocolate into the mixture, each crunchy, yet easy-to-eat ball, is showered in a drizzle of melted bittersweet chocolate. If your kitchen is cool enough, you can keep these stored at room temperature for a day or so before they start to loose their crunch. I, however, don't have that ability today - not only is it a scorcher outside today (hurray for a recipe that doesn't heat up the oven!), inside the house isn't much cooler.
We are having work done on the master bathroom (which means the doors are being left open as they go in and out all day!), so I'll most likely need to keep the balls in the refrigerator to keep the chocolate firm. I also plan on wrapping each individually in either plastic wrap or dropping them into a cellophane bag.
S'Mores Popcorn Balls