Saera

This Sapporo institution serves sandwiches of the genteel sort (crusts-off, lightly stuffed), with dozens of fillings. Two to try: the king-crab sandwich and the curious fruit sandwich, filled with mandarins and whipped cream. It's in Ōdōri subway station; at exit 19 go downstairs instead of up, then inside a department store, where the entry will be on your left. An extra ¥200 gets you coffee.