In a medium bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, nutmeg, cloves, and ginger. Set aside.
In a large bowl with an electric mixer, beat together on medium high speed the softened butter adn sugars until light and fluffy, about 2 minutes.
Beat in the egg and egg yolk until smooth and combined. Scrap down the bowl as needed.
Add the pumpkin and vanilla beating well with each addition until thoroughly blended.
Add flour mixture and mix on low speed until just combined. Stir in chocolate chips. Cover and and refrigerate for at least one hour, or overnight.
Preheat the oven to 350oF (177oC) and line several baking sheets with parchment paper. Allow cookie dough to soften slightly before scooping (especially if you have let the dough rest overnight!)
Scoop 1 ½ tablespoons of cookie dough and roll into a ball in your hands. I like to use a small cookie scoop so they are all the same size. Place onto baking sheet spaced 2 inches apart to allow for cookies to spread
Bake one sheet at a time in the center of the oven for 10 to 12 minutes. When they come out of the oven I like to top the cookies with a few more chocolate chips to make for a pretty cookie! Let them cool on the baking sheet for 10 minutes and then move to a rack to finish cooling.