Olive Oil Poached Cod with Charred Onion Yogurt and Fennel Salad

Name: Olive Oil Poached Cod with Charred Onion Yogurt and Fennel Salad
Ingredients: 1 shallot, peeled and left whole; 1/4 cup buttermilk; 1/4 cup creme fraiche; 1/4 cup labneh; 2 tablespoons chopped fresh chives; 1 tablespoon fennel pollen; 2 stalks celery, trimmed and shaved thin on a mandoline; 1 head fennel, trimmed and shaved thin on a mandoline; 2 tablespoons toasted pine nuts; 2 teaspoons currants, soaked in hot water for 3 to 4 minutes; 2 teaspoons apple cider vinegar; 24 ounces cooking olive oil; 2 sprigs fresh thyme; 1 clove garlic; Four 6-ounce pieces ling cod; 1/4 cup picked parsley leaves; 2 tablespoons freshly torn basil leaves; 2 tablespoons sliced fresh chives