Open the tins of sardines, drain off the excess oil, and set the tins in the middle of a lovely, long platter. Halve the baguette lengthwise, then cut into pieces. Toast them, and arrange around the sardines. Cut the lemon into wedges and pile on the platter as well. Serve with a pot of cold (preferably unpasteurized) butter and pepper for grinding over top.
Recipe courtesy of Laura Calder