For a nice presentation, garnish the plates with thin cucumber slices, watercress sprigs and some radishes. Mix red onion, sugar and vinegar in small bowl. Let stand 10 minutes. Meanwhile, mix cream cheese, chives, cr?me fra?che, dill and capers in another small bowl. Spread each bread slice with about 1 tablespoon cheese mixture to cover. Divide salmon about 8 bread slices. Sprinkle about 1 tablespoon red onion mixture atop salmon on each bread slice. Top each of 4 salmon-topped bread slice, salmon side up. Top each stack with 1 cheese-covered bread slice, cheese side down, forming a total of 4 three-layer sandwiches. Cut each sandwich into 4 triangles. 4 Appetizer Servings Bon App?tit May 1996 Posted to recipelu-digest by Sandy on Feb 24, 1998