Chicken Pot Pie Toast

Name: Chicken Pot Pie Toast
Ingredients: 1/2 stick (4 tablespoons) salted butter; 3 medium carrots, peeled and small diced; 2 celery stalks, small diced; 1 large yellow onion, small diced; 2 sprigs fresh thyme; 1/4 cup all-purpose flour; 2 cups low-sodium chicken broth or stock; 1/2 cup heavy cream; 1 chicken bouillon cube; Pinch turmeric; Kosher salt and freshly ground black pepper; 6 thick slices brioche; 2 cups shredded cooked chicken; 1/2 cup frozen peas; Chives, chopped, for garnish