Lightly grease the 6" tart pan.
Combine flour, sugar & butter & bring together using your fingertips till it roughly resembles bread crumbs. I used potato masher. You can use a food processor. Do not handle the mixture too much.
Add about 2 Tbsps of water & bring together the mixture to form a dough. If necessary, add more water. Again do not handle the dough too much.
On your work surface, make the dough into a ball. Flatten it a little to form a 5" disc using your palm. Cover in cling film & refrigerate for 30-60 mins.
Remove dough from refrigerator, lightly flour your work surface & rolling pin. Roll out a pastry about 3 " bigger than your pan size. Keep rotating the pastry as you roll for evenness & to avoid sticking to the surface.
Once the desired size is achieved, then gently roll the pastry onto your rolling pin & place it onto the pan with an overhang. Gently press the pastry in the pan. Do not stretch the pastry as it will shrink while baking. Flute the edges of the pastry.
Chill the pastry covered in cling film and pre-heat the oven to 210 C.Remove from refrigerator, use a fork & make some holes in the pastry to avoid ballooning of pastry. Now lightly grease one side of aluminum sheet & place the grease side down on the pastry. Fill the pan with rice or beans or pie-weights.
Bake in pre-heated oven for 15 mins. Remove the pastry from oven, remove the aluminum foil & rice.
Return it to the oven & bake at reduced temperature of 190 °C for 10 mins. Allow it to cool.