Combine the canned pumpkin, almond milk, sugar, cornstarch and spice in heavy duty pan, consistently stirring. Bring to a boil over medium heat until thickened.
Use a rolling pin roll to flatten the Rice Krispie treats on a cookie sheet pan.
Pour the contents of the pan over the Rice Krispie treats. Drizzle with melted dark chocolate and chill in a freezer (run on a generator) or a cooler filled with dry ice.
Cooking Tips:
Put chocolate inside a pastry bottle and heat up over medium heat in boiling water. Use an ice bath to get the pie to set.