In a large bowl, whisk together eggs, milk, pumpkin puree, pumpkin pie spice, vanilla and salt. Working one at a time, dip bread slices into the egg mixture, allowing to soak for at least 10 seconds.
Melt 1 1/2 tablespoons butter in a large skillet over medium heat.
Working in batches, add bread slices to the skillet, 1-2 at a time, and cook until evenly golden brown, about 2-3 minutes on each side. Repeat with remaining bread and butter.
Serve immediately with maple syrup, garnished with confectioners' sugar, if desired.