place egg yolk in a bowl and set aside place half the cream, brown sugar, and salt in a pot and bring to a simmer. Stir in vanilla and spices and allow to steep for 10 minutes (off the heat). Then add remaining cream and bring to a simmer again. Temper into egg yolks and strain over an ice bath. Whisk in pumpkin puree. Allow to cool. Measure into 6 oz. ramekins. Bake in a water bath at 300 for 30 minutes (rotating half way through)