Chicken Soup With Fenugreek and Turmeric

Name: Chicken Soup With Fenugreek and Turmeric
Ingredients: 4 chicken legs (thigh and drumstick; 2–2½ lb. total); 1 large onion, halved through root end; 2 leeks, white and pale green parts only, halved, sliced into ½”-thick half-moons; 1 head of garlic, halved; 1 lb. Yukon Gold potatoes (3–4 small or about 2 medium), peeled, halved, sliced into thirds; 3 medium carrots (about 6 oz.), peeled, sliced ½ thick; 3 celery stalks, cut into 1 pieces; 1 Tbsp. dried fenugreek leaves; 1 tsp. ground turmeric; 2 Tbsp. Diamond Crystal or 1 Tbsp. plus ½ tsp. Morton kosher salt, plus more; 1 tsp. freshly ground pepper, plus more