Preheat oven to 350 degrees F. Grease a cookie sheet with cooking spray and set aside. Beat together butter and sugar with an electric mixer until creamy. Add eggs one at a time, beating well after each addition. Mix in vanilla.
In a small bowl, mix the flour, baking powder, and salt together. Add the dry mixture a little bit at a time to the wet mixture, beating just until blended. Stir in the chocolate chips by hand.
With lightly floured hands, divide dough into two pieces and form into log shapes, about 9-10 inches long. Flatten with palms of hands to about 3 inches wide.
Bake in the preheated oven for 25 minutes until golden brown. Remove from oven and allow to cool on the pan for 15 minutes. Reduce oven temperature to 300 degrees.