Sweet Tamales With Yams and Pecans Recipe

Ingredients

• 1 large garnet yam, peeled and cubed (about 1 1/4 pound-or jewel yam)
• 1/4 cup brown sugar
• 6 tablespoons softened butter, divided
• 1 1/2-2 cups masa harina flour (corn flour)
• 2 teaspoons cinnamon
• 2 teaspoons baking powder
• 1/2 teaspoon salt
• 1 1/2 cups chicken broth or 1 1/2 cups reduced-sodium chicken broth
• 1/2 cup chopped toasted pecans
• 15 -20 corn husks, soaked for 1 hour in warm water
• 1/2 cup sour cream
• 1 tablespoon minced chipotle chile in adobo (canned)