Aloo Gobhi Stuffing

1 (24-inch) baguette , cut into 3/4-inch cubes (8 cups)

3 medium onion s, coarsely chopped

3 medium carrot s, cut into 1/4-inch dice

3 celery ribs, cut into 1/4-inch dice

1/2 lb russet (baking) potato es, peeled and cut into 1/2-inch dice

1 (2-lb) head cauliflower , trimmed and cut into 1/2-inch-wide florets and stem pieces

2 

1/2 teaspoons curry powder (preferably Madras)

1/2 teaspoons sea salt

1 teaspoon black pepper

1 teaspoon cumin seeds

1/4 teaspoon cayenne

1/2 cups reduced-sodium chicken broth (12 fl oz)

1 

1/2 cups unsalted roasted cashew s (7 oz)