In a medium bowl whisk the eggs, brown sugar, pumpkin spice mix, vanilla extract, pumpkin puree and the milk.In a medium skillet, melt 1 T butter on medium high.Deep each piece of bread into the pumpkin mixture. Press down so that the bread soaks up the maximum amount of batter. Place the bread (3 at a time) onto the skillet and cook for 3 minutes each side until brown. Melt ½ T of butter for each side you cook. Top with pumpkin spice syrup, and optional whipped cream. Serve hot.