Toss the diced pumpkin in olive oil and cane syrup. Season with salt and pepper. Mix well. Place the pumpkin on a parchment lined baking sheet. Roast for 15 to 20 minutes or until tender. Remove from the oven and cool.
In a large saucepan, melt the butter. Add the onions and saute for 6 to 8 minutes, or until caramelized. Season with salt and pepper. Add the garlic, bay leaves, and stock. Stir in the pumpkin, cinnamon, and nutmeg and bring to a boil Reduce to a simmer and cook the soup until the pumpkin is very tender, about 25 minutes.
Remove the bay leaves from the soup, and with a handheld blender, puree the soup until smooth. Slowly whisk in the cream. Whisk in the peanut butter. Reseason with salt and pepper, if necessary. Simmer the soup, stirring occasionally, for 15 minutes. Remove from the heat and ladle into shallow bowls.
In a small mixing bowl, combine the chives, duck confit and pumpkin seeds. Mix well. Garnish each soup with the relish.