Place flour and salt in food processor and mix.
Place pieces of butter evenly on top of flour, then pulse until you arrive at a cornmeal consistency.
Whisk together eggs and water then slowly add to flour mixture while still pulsing. Interrupt mixing to make sure the dry ingredients are completely combined.
Tip onto a large piece of plastic wrap.
Wrap plastic wrap around pastry and lightly pat together to form pastry.
Knead lightly if needed, and mould into a circular mound. Add a tbsp of flour if dough is a little too soft.
Wrap pastry up in plastic wrap and place in fridge for at least 30 minutes.
Scatter flour onto a cleaned and dry surface then roll out pastry, carefully and steadily, until it is approx. 15 inches in diameter.
Rub base and sides of springform pan with butter.
Carefully fold pastry in half, then in half again, lift and place pastry into the center of the springform pan.
Carefully unfold pastry and push into edges of the pan so that the entire pan is covered and prick base a few times with a fork.
Allow excess pastry to hang over the edge of the pan.
Tear off a large piece of parchment paper that will cover the base and sides of the pan, and push into pan on top of pastry.
Slowly tip dry beans on top of parchment paper, and cut away excess parchment paper.
Place in a preheated oven at 350 and bake for 15 mins.
Remove from oven and as soon as you can handle, remove beans and parchment paper then return pastry to oven and cook until pastry begins to turn golden - approx. 10 mins.
Remove from oven and allow to cool.