Melt butter and lightly sauté the onions and the minced garlic until they are translucent.
Add carrots and mushrooms, and stir continuously until the mushroom juice starts to leak out.
Add in Worcestershire sauce and chicken stock cube.
Add in 375 ml of water or chicken stock.
Mix the remaining125 ml of water with 20 g of corn starch to thicken the gravy.
Add salt and black pepper.
Pour this into a casserole and set aside.
Fry chicken cubes with ingredients in mixture A and mixture B
Whisk all ingredients in mixture A until well combined.
Add the chicken cubes and massage them thoroughly.
Cover with cling wrap and set aside for 20 minutes.
Remove the chicken and coat it with a thin layer of corn starch.
Heat the cooking oil to 150°C and fry the chicken pieces till they are light golden colour. Drain on a wire rack for 2 minutes.
Line the fried chicken cubes on top of the gravy in the casserole.
Baking the chicken shepherd’s pie
Lightly wash and scrub the skin of the potatoes.
Roast them in the oven at 180°C for 40 minutes.
Remove the skin and mash the potatoes, passing them through a fine drum sieve.
In a saucepan, bring the milk and butter to a simmer. Once the butter melts, pour the mix into the sieved potatoes.
Mix them well.
Transfer the mashed potatoes into a piping bag. Pipe the prepared mash evenly to cover the chicken pieces in the casserole.
Once covered, shave a generous amount of Parmigiano Reggiano on top of the pie and bake it in the oven at 250°C until a brown crust is formed on top of the pie.