Pulse capers in a food processor fitted with a steel blade until coarsely chopped. Add salmon, dill, oil, and lemon zest; pulse until salmon is finely chopped and tartare is well mixed. Transfer to a small bowl, stir in red onion and serve with flatbread crackers, pita chips, or toasted baguette.
Recipe by Three Many Cooks at https://threemanycooks.com/recipes/nibbles-and-apps/smoked-salmon-tartare/