Melt 3 tablespoons of butter in a small bowl for thirty second, until melted. Set aside.
In a medium bowl, whisk together flour, baking soda, salt and sugar.
Stir egg and milk together.
Pour the egg and milk mixture and butter into flour mixture and whisk together until combined.
Spray a small frying pan with cooking spray and warm on medium-high heat. Pour approximately 1/4 cup batter into pan. Swirl around until batter covers the bottom of the pan. Cook for about 2 minutes, until bottom is golden brown. Flip and cook for another minute or so. Remove pancake from pan and place on a plate. Repeat until all the batter is gone.
With pancakes will warm, spread with the remaining butter and dust with powdered sugar. Take one end of the pancake and roll it up. Serve with whipped cream and syrup.