I live on Highland Ave and Cedar St in Somerville - and must make brownies today per special request of a sick friend - and the Porter Square Star Market is out of unsweetened chocolate. I don't have a car, and it's raining. Are there any other stores that would carry unsweetened chocolate within a similar walking radius (10 minutes)? I don't really want to go on a 3 mile hike this morning, but I suppose if I have to... I can't think of any other grocery stores in this area, but I don't go up to Broadway that often or to Davis Square for groceries... are there any stores in those vicinities? I couldn't find anything via google... Thanks for your help!