- 1 cup finely chopped red onion
- 1 tablespoon sugar
- 1 tablespoon rice vinegar
- 4 ounces cream cheese, room temperature
- 3 tablespoons chopped chives
- 2 tablespoons crème fraîche or sour cream
- 1 tablespoon chopped fresh dill or 1 teaspoon dried dillweed
- 1 tablespoon drained capers
- 12 slices thin Danish-style pumpernickel bread (each about 3 3/4 x 3 3/4 x 1/4 inches, available in the refrigerated deli section of many supermarkets)
- 6 ounces thinly sliced smoked salmon
- Mix red onion, sugar, and vinegar in small bowl. Let stand 10 minutes.
- Meanwhile, mix cream cheese, chives, crème fraîche, dill, and capers in another small bowl. Spread each bread slice with about 1 tablespoon cheese mixture to cover. Divide salmon among 8 bread slices. Sprinkle about 1 tablespoon red onion mixture atop salmon on each bread slice. Top each of 4 salmon-topped bread slices with another 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.