Pumpkin Oatmeal Chocolate-Chip Cookies (Non-Cakey Version)

unsalted butter (softened)

light brown sugar (lightly packed)

white sugar

+ 2 tablespoons canned pumpkin ((not pumpkin pie filling and not the entire can))

large egg yolk (discard or save the whites for another recipe)

vanilla extract

and 1/2 cups white all-purpose flour

and 1/2 cups quick oats

cinnamon

baking soda

baking powder

salt

+ 2 tablespoons miniature semi-sweet chocolate chips

regular milk or dark chocolate chips