preheat oven to 375 degrees
lightly grease a 9 by 13 baking pan
in a large bowl mix together sugar and butter
add in pumpkin and stir
add in eggs and stir
add in dry ingredients and mix well
stir in optional nuts or chocolate chips if desired
Bake for 16 to 18 minutes (until toothpick comes out clean, or blade of knife)
Remove from oven and let cool 5 to 10 minutes before serving
(these freeze well so you can make a double batch if you have 2 pans)