Luxury Fish Pie with Parmesan and Garlic Sweet Potato Mash

Name: Luxury Fish Pie with Parmesan and Garlic Sweet Potato Mash
Prep time: 20 min
Cook time: 1 h 20 min
Total time: 1 h 20 min
Yield: 6 portions
Ingredients: 1000 g sweet potatoes; 1 garlic bulb; 30 g Parmesan cheese; 100 g onions; 6 cloves; 2 bay leaves; 250 g cod fillet; 250 g smoked haddock; 250 g raw prawns, peeled; 600 g whole milk; 4 medium eggs; 30 g salted butter; 20 g plain flour; ½ tsp fine sea salt; ¼ tsp ground black pepper; 30 g unsalted butter; ¼ tsp cayenne pepper; 2 pinches fine sea salt; 2 pinches ground black pepper