Hot smoked salmon, watercress & Charlotte potato

Potato Salad 67.0% , potato 16.5% , mayonnaise 8.3% , crème fraîche 4.1% , onion 2.1% , spring onion 1.0% , parsley 0.5% , capers 0.3% , lemon juice 0.1% , corn flour 0.1% , black pepper 0.0% , Thickener 0.0% , Hot Smoked Salmon 13.0% , cucumber 10.0% , lettuce 5.0% , lemon 4.0%