Pumpkin Chocolate Chip muffins

3 1/3 c. flour (I use half ww flour, or all GF flour)
2 c. Sugar
2 T Pumpkin Pie Spice or (3 tsp cinnamon, 1 1/2 tsp ginger, 3/4 tsp nutmeg, and 3/4 tsp allspice)
2 tsp Baking soda
1/2 tsp baking powder
1/2 tsp salt
4 eggs
1 lb can pumpkin or homemade pumpkin puree
1 c. butter, melted( I use 1/2 c. applesauce and 1/2 cup melted butter
2 c. semi-sweet chocolate chips

Thouroghly mix the first 6 ingredients in a large bowl.  Break eggs into another bowl.  Add pumpkin and butter, whisk until well blended.  Stir in chocolate chips.  Pour over the dry ingredients and fold in with a rubber spatula just until dry ingredients are moistened.  Scoop batter evenly into greased and floured muffin cups.  Bake in 350 degree oven for about 30-40 minutes for jumboor 25 minutes for regularuntil puffed and springy to the touch in the center.  Turn onto a rack to cool.  Can be wrapped when cool and kept for 1-2 days.  They are best when made the day before.  Makes 12 jumbo muffines, or 24 regular muffins.  I also like to make 12 regular and 24 mini muffins (Bake 15 minutes)