We double our recipe and it still fits fine into a 13x9 pan (grease the pan w/butter). To make them truly gooey use the following measurements: 11.5 cups Rice Krispies, 1 whole stick of butter, (1) 16oz bag of mini marshmallows. (I always use Jet Puff brand). I've become the neighborhood "treat" maker because the neighbors say theirs never turn out like mine.
Another helpful tip, if you spray your hands with the cooking spray, you can press them into the pan without getting all sticky!
Get the recipe here >> S'mores Rice Krispies Treats @ yummyhealthyeasy.com
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