Set your oven to broil. Broil the marshmallows for about 1 minute on each side to toast. Set aside.
Combine 2.5 cups of TruMoo with 10-12 graham cracker squares in a blender. Blend until combined. Pour into 2 glasses.
Top with toasted marshmallows & additional graham cracker crumbs.
Garnish further with whipped cream & Hershey's bar pieces, if desired.