Tortiglioni for Cheese Lovers

Ingredients

• 450 g (1lb) tortiglioni
• 1 white onion, chopped
• 45 ml (3 tbsp) butter
• 20 g (3 tbsp) white flour
• 125 ml (1/2 cup) vegetable stock, heated
• 500 ml (2 1/2 cups) milk, heated
• 125 ml (1/2 cup) cream, heated
• 1 bay leaf
• 2 sprigs fresh thyme
• 200 g (2 cups) old Cheddar, grated
• 60 ml (1/4 cup) Parmesan, grated
• 60 g (1/2 cup) Mozzarella, grated
• Salt and freshly ground pepper, to taste
• 10 ml (2 tsp) paprika