Ingredients:
400 g smoked fish
400 g raw fish
3 cups / 750 ml milk
1 brown onion - chopped
4 cloves
White Sauce:
50 g / 3 tbsp unsalted butter
2 garlic cloves - minced
1/2 small onion – finely chopped
1 small carrot – finely chopped
1 small celery stick - finely chopped
1/3 cup / 50g plain flour
1 Tbsp fresh tarragon - finely chopped (optional)
2 Tbsp parsley – finely chopped
Salt and pepper
Potato Topping:
750 g floury potatoes – peeled and cut into 2.5cm (1 inch) pieces
30 g / 2 tbsp+ unsalted butter
1/2 cup / 125 ml milk
Pie:
1 cup frozen peas
4 hard boiled eggs – quartered (optional)
30g / 2 tbsp butter - melted
1/4 cup / 15g grated parmesan cheese – (optional)
Finely chopped parsley – for garnish (optional)
Method:
Fish:
Push a clove into the skin of each onion. Place in a pot, add milk, turn stove onto medium high heat.
When milk is barely simmering, add fish - don't worry if it's not entirely covered, it can be turned / moved around.
Poach fish for 7 minutes, then use a slotted spoon to transfer fish straight into a medium baking dish. Flake into chunks using forks.  Remove bones if you see any.
Use slotted spoon to remove onion and cloves from milk, discard. Reserve milk.
Preheat oven to 180°C. 
Sauce:
Melt butter in a large pot over medium high heat. Add onion and garlic, cook for 1 minute. Then add celery and carrot, cook for 5 minutes until carrot is soft.
Turn heat down to medium low. Add flour, mix in - it will look gluey. Add half the milk and quickly start mixing. Once incorporated, the mixture will thicken quickly. Add remaining milk and stir.
Turn heat up to medium and keep stirring until the mixture thickens to the consistency of honey - about 3 minutes.
Take off the heat, stir through tarragon and parsley. Adjust salt and pepper to taste.
Pie:
Scatter top of flaked fish with peas, then pour over the Sauce. Gently stir through. Smooth top, then nestle eggs in all over the pie.
Mashed Potato:
Bring a large pot of water to the boil. Add potatoes and cook for 15 minutes or until soft. (Do this while making the Sauce).
Drain potato, add butter, milk, salt and pepper. Mash until creamy - add more milk if required.
Immediately dollop then spread onto pie. Use fork to draw squiggles on surface.
Bake Pie:
Drizzle surface with melted butter, sprinkle with parmesan.
Bake for 35 minutes or until top is deep golden. Stand for 5 minutes before serving, garnish with parsley if desired.