Sweet Potato Muffins - The Scramble

Ingredients

• 1 cup whole wheat flour (use wheat/gluten-free if needed)
• 1 cup rolled oats (use wheat/gluten-free if needed)
• 1/3 cup brown sugar
• 1 tsp. baking powder
• 1/2 tsp. baking soda
• 1/2 tsp. salt
• 1 tsp. ground cinnamon
• 1 sweet potato (cooked and mashed, about 1 cup)
• 2 eggs
• 1/2 cup low fat plain yogurt (or use any variety)
• 1/4 cup butter or coconut oil (melted)
• 1 tsp. vanilla extract
• 1 cup walnut pieces (optional)