Pumpkin Chocolate Chip Cookies

Pumpkin Chocolate Chip Cookies
(from Joy the Baker)
2 cups all-purpose flour
1 1/2 teaspoons baking powder
1 teaspoon soda
1/2 teaspoon salt
1 teaspoon ground cinnamon
1/4 teaspoon freshly grated  nutmeg
1/4 teaspoon ground cloves
2 eggs
1 cup sugar
1/2 cup canola or corn oil
1 cup canned pumpkin
1 teaspoon vanilla extract
1 cup chocolate chips, or any chip you like
Position a rack in the middle [...]