One of the apple crumb pies made by Alysia Bryant of Carefree Cakery for a pop-up Pi Day event on Thursday at the Mill District General Store and Local Art Gallery in Amherst. STAFF PHOTO/DAN LITTLE

Meagan Mitchell, right, tries a bite of apple crumb pie as her 5-month-old Finnian looks on with Nicole Allen during a pop-up Pi Day event with Carefree Cakery and Stout Pigeon Coffee on Thursday at the Mill District General Store and Local Art Gallery in Amherst.STAFF PHOTOS/DAN LITTLE