It’s tough to improve on the empirical excellence of a crisp-rimmed, gooey-centered chocolate chip cookie, but Dina Cimarusti has managed it with the genius addition of tahini to her dough. The sesame paste adds a subtly savory nuttiness that, along with a sprinkling of sea salt, makes for a decidedly grown-up take on a childhood fave. $3.75. 3612 W. Wrightwood Ave., Logan Square