Cinnamon Ripple Sweet Potato Cake | Paula Deen

Ingredients

• 1 cup softened, plus butter for pan Butter
• 1/2 cup firmly packed brown sugar
• 1/2 cup chopped plus more for garnish pecans
• 1 teaspoon ground cinnamon
• 2 cups sugar
• 3 large eggs
• 12 oz Sour cream
• 1 cup mashed cooked (about 1 medium) sweet potato
• 1 teaspoon vanilla extract
• 3 cups all purpose flour
• 1 teaspoon baking powder
• 1 teaspoon salt
• 1/4 teaspoon Ground nutmeg
• 2 cups confectioner's sugar
• 1/2 cup heavy whipping cream
• 3/4 teaspoon rum extract