One thing I should also tell you... the way you measure out flour will greatly affect the outcome of this cookie recipe. Use care to not pack the flour in. Fluff it up to aerate it and spoon it gently into the measuring cup, level the top with the knife, you know the drill. You want rich delicious cookies, not over-floured, dry cookies. Also, use all purpose flour here. Bread flour will absorb more of the wet ingredients and the cookies will be more dense.