Easy cauliflower Biryani

Name: Easy cauliflower Biryani
Prep time: 20 min
Cook time: 1 h
Total time: 1 h 20 min
Cuisine: Indian
Ingredients: 1 kg (2lbs) cauliflower florets; 1 onion (finely chopped); 3 garlic cloves (finely chopped); 2 tsp crushed ginger; 2 tsp ground coriander; 1 tsp ground turmeric; 1 tsp ground cumin; 1 tsp ground cinnamon; 1/2 tsp each ground nutmeg and ground cloves; 1 tbsp hot garam masala; 2 bay leaves; 1 tsp sugar; 2 cups stock; salt to taste; 2 cups Jasmine/ Basmati rice; 4 cups chicken stock/water; 2 onions (thinly sliced); oil for frying; ½ cup butter; ½ tsp turmeric; 1 tsp salt