Preheat your oven to 350°F (175°C).
In a mixing bowl, whisk together the pumpkin purée, heavy cream, sugar, eggs, pumpkin spice, and vanilla extract until smooth.
Pour the mixture into individual ramekins, leaving some space at the top as they will rise during baking.
Place the ramekins in a baking dish, and fill the dish with hot water halfway up the sides of the ramekins.
Bake in the preheated oven for about 35-40 minutes or until a knife inserted into the center comes out clean. Allow to cool slightly before refrigerating.
Once cooled, cover the ramekins with plastic wrap and chill in the fridge for at least 2 hours, or overnight.
Before serving, sprinkle a thin layer of sugar over the top of each custard and use a kitchen torch to caramelize the sugar until it forms a crispy crust.
Allow the sugar crust to harden for a minute, then dig in with a spoon to enjoy the contrast of textures!