Lottie’s Creamery has been selling brownie ice cream sandwiches for a while now at the Concord farmers market at Todos Santos Plaza on Thursdays and now they are also available at the Locust St. Walnut Creek farmers market on Sundays. Check out the varied selection below, most of which are not even available at their N. Main St. location in downtown Walnut Creek. Check out their Facebook page here.