Pumpkin Chocolate Chip Bars/cake

3 cups all-purpose flour
1 Tablespoon pumpkin pie spice
1 1/2 teaspoon baking soda
1/2 teaspoon baking powder
1 teaspoon salt
1 cup unsalted butter, softened
1 1/2 cups sugar
2 large eggs
2 t vanilla extract
1 3/4 cups canned pumpkin puree
1 cup dark chocolate chips or chunks

Preheat the oven to 350 degrees. Grease and flour a 9 x 13 pan.
Mix together flour, pie spice, baking soda and salt. Set aside. Cream butter and sugar together until smooth. Beat in the egg and vanilla until combined. Alternate adding the pumpkin (2 installments) and flour mixture (in thirds) beginning and ending with the dry ingredients. Mix until just combined. Fold in chocolate chips. Spread batter evenly in pan and bake 35 minutes or until edges pull away from the pan and toothpick comes out clean.

(recipe adapted from Everyday Food)