Sweet Potato Muffins

Ingredients

• 1-2/3 cups all-purpose flour
• 1 tsp baking soda
• 1/2 tsp baking powder
• 1/2 tsp salt
• 1/2 tsp cinnamon powder
• 2 medium eggs
• 1 cup granulated sugar
• 1/2 cup vegetable oil
• 1/4 cup fresh/whole or 2% milk
• 1-1/4 cups sweet potato/yam, boiled and mashed
• 1/2 cup walnuts, chopped