01 - 
                Heat oven to 375°F.
              
              
              
                02 - 
                Spray 12-cup muffin pan with cooking spray.
              
              
              
                03 - 
                Mix melted butter, brown sugar, maple syrup, and cinnamon in large bowl.
              
              
              
                04 - 
                Add sweet potato slices and gently toss to coat.
              
              
              
                05 - 
                Stack potato slices in muffin cups (5-6 slices each).
              
              
              
                06 - 
                Sprinkle chopped pecans on top.
              
              
              
                07 - 
                Cover pan with foil and bake for 25 minutes until potatoes are tender.
              
              
              
                08 - 
                Remove foil, add 3-4 mini marshmallows on each stack, and broil for 45-60 seconds until toasted.
              
              
              
                09 - 
                Carefully remove stacks and serve hot.