Whisk eggs, milk, pumpkin puree, nutmeg, vanilla, pumpkin pie spice, and salt in a medium bowl. Place bread slices into liquid mixture and let soak 30 seconds on each side.
Melt one tablespoon of Grassland butter on a large non-stick skillet, or preheated electric griddle. Cook two slices of bread on the skillet until each side is golden, around 3 minutes. Repeat the above steps to cook all slices.
Top your pumpkin french toast with a generous amount of powdered sugar, and drizzle with maple syrup.
