Ready In: 45 mins Minutes
Servings: 8 Persons

Ingredients:

1. Plain Flour (include a pinch pf salt……………..500g
2. Margarine …………………………………..4 medium
3. cold water ……………………………1

For the filling :

1. potatoes (peeled/ cut into halves)………………………2 lbs
2. onions (finely chopped)……………………………….. 8 oz
3. cheddar cheese (grated)……………………………….. 4 oz
4. mustard………………………………………………...1 tsp
5. Margarine………………………………………………2 oz
6. Salt……………………………………………………..to taste


Method:

1. First of all rub the margarine into the flour with your hands,until thoroughly mixed.
2. Add enough cold water (a tbp at a time is easier) and mix with your hands so as to make pastry hold together, be sure not to have it too wet.
3. Cover with Clingfilm and leave to chill in the fridge for 20 mins.
4. In the meantime Boil the potatoes in salty water for 20 25 mins.
5. Mash them until fluffy. In a separate pan melt the margarine, add the finely chopped onions and cook until tender and transparent (for 10 mins).
6. Incorporate the grated cheese / mustard / onions and margarine to the filling and mash thoroughly. Add salt / pepper to taste.
7. Sprinkle flour very lightly on a board, and roll pastry out to the thickness of half an inch. Line a 10 " pie tin and prick with a fork to allow heat to get through the pastry.
8. Leave in a preheated oven at 180 C for 10 mins.
9. Once pastry is slightly cooked add the filling and cover the top with grated cheese. Cook for a further 25 mins until golden brown.

Allow to cool before cutting .Best served with boiled vegetables.