Something else to note is that the more heat it is subjected to, the shorter its life becomes. With the help of refrigeration, you can keep a single quiche viable for four days if you are careful ...
Roll out the pastry into a quiche dish and press into the edges ... the new potatoes then season with salt and pepper. Put the spinach in a colander and pour over a kettle’s worth of boiling ...
For this recipe ... spinach in a heavy-bottomed pot and put the heat on under it. Cook until its water is released and has entirely cooked away. You do not want residual water to turn your quiche ...