Sweet Potato Soup

Ingredients

• 1 medium yellow onion
• 2 pounds sweet potatoes
• 1 tablespoon extra virgin olive oil
• 1 pound carrots
• 1 teaspoon kosher salt
• 1/4 teaspoon ground allspice
• 1 tart apple
• 1/2 teaspoon ground black pepper
• 1/4 cup + 2 tablespoons heavy cream
• 3 cups chicken or vegetable stock
• 1/8 teaspoon ground cayenne pepper
• 1/2 teaspoon ground cinnamon