can use 7 Tablespoon of butter This pastry is very sticky because of the high fat content, best made in the food processor. Roll the chilled pieces of butter in the flour to help reduce the stickiness. Roll it out on two pieces of Saran wrap, lift the wrap to transfer in the flan pan and peel off. This pastry is forgiving (can be patched) and is important for Lemon Tart as a flavour contrast. Put flour and sugar in food processor bowl and pulse 1-2 times to aerate. Roll cubes off butter in flour and distribute over flour & sugar in work bowl. Process briefly till mixture reassembles fine meal. Drop egg down chute while processor is going. Process briefly till egg is incorporated. Turn on on Saran Wrap covered surface and form into ball. Refrigerate for at least an hour. Roll out on Saran Wrap covered surface. (You may add extra flour although it will toughen it slightly.) Roll to thickness 0 cm and 8 cm larger in diameter than flan tin. Transfer carefully, trim edges and put in fridge for at least an hour. Preheat oven to 190ºC oven. When it is at the right temperature, put pastry lined tin in centre and bake 15 minutes. If browning too much, turn oven down to 160ºC . Remove form oven and allow to cool before removing from oven.