Bring 3 cups of the stock to a boil in a large saucepan over high heat. Whisk in the pumpkin puree, 1 teaspoon of the cinnamon, the ginger, allspice, nutmeg, honey, maple syrup, and chipotle puree. Reduce the heat to low and simmer, stirring occasionally, for 15 to 20 minutes. Add more stock if the soup is too thick.
Remove from the heat and whisk in cup of the crema and season with salt and pepper to taste. Mix together the remaining cup crema and 1 teaspoon cinnamon until combined. Ladle the soup into bowls. Drizzle with the cinnamon crema and sprinkle with the roasted pumpkin seeds and a little cinnamon.
Roasted Pumpkin Seeds (Makes 1 cup).
1 cup raw pumpkin seeds.
2 tablespoons vegetable oil.
Preheat the oven to 325 degrees F.
Toss the seeds with the oil and season with salt to taste. Spread the seeds evenly on a baking sheet and bake, tossing occasionally, for 15 to 20 minutes, until they are lightly golden brown and crisp. Let cool. These can be made up to 2 days in advance and stored in an airtight container.