Tinned Sardine and Celery Salad

Name: Tinned Sardine and Celery Salad
Ingredients: Tinned Sardine Salad; 3 tablespoons Kewpie mayo (specifically, Kewpie) is; 1 tablespoon whole grain mustard; 2 tablespoons lemon juice; 1 can sardines (packed in oil); 3 celery stalks (cut on the bias); pickled shallot; 2 tablespoons chives (finely chopped); zest of 1 lemon; 3-4 fresh tarragon leaves (for garnish, and also taste)); 5-6 celery leaves (for garnish); 1 tbs capers, drained, fried; 2 tablespoons olive oil; quick pickled shallots; 1 teaspoon caster sugar; 1 dash kosher salt; 3 tablespoons red wine vinegar; 1/2 shallot (finely chopped)