Louisiana Potato Salad

Name: Louisiana Potato Salad
Ingredients: 5 lb. Yukon Gold potatoes (14–15 medium); 1½ cups plus 2 Tbsp. mayonnaise; ¼ cup plus 2 Tbsp. dill pickle relish; 2 Tbsp. Creole seasoning; 2 Tbsp. yellow mustard; 1 Tbsp. kosher salt, plus more as needed; 1½ tsp. cayenne pepper; 6 hard-boiled eggs, finely chopped; 4 medium celery stalks, finely chopped; 1 medium onion, finely chopped; Finely chopped chives, for garnish