peel and slice potatoes very thinly.
mix cream and egg together.
layer potato slices and cream in a baking dish
bake at 180c for 90 minutes with tin foil.
remove tinfoil and bake for another 20 minutes.
remove from oven and leave to cool overnight.
remove from baking dish and cut into 9 squares, cut each square into 2 triangles(two triangles per person)
shallow fry individual pieces until golden brown.
serve with parsley and olive oil.
2 sweet potatoes