Mix flour, sugar and salt in a large bowl. Then add in 80ml water, mix into a dough. If the dough is too dry, continue to add some water) 

Knead the dough for 2 minutes. The dough will not be smooth, but it is ok. Use cling film to cover, leave it for 1 hour. 

Divide the dough into 2, place one piece of dough on the parchment paper, roll into around 1/8 inch thickness (the thinner the crispier). 

Cut the dough into square, and use toothpick to prick some holes. 

Pop in preheated oven at 180C, bake for 10-15 minutes, or until pale golden colour. If your dough is thicker, need more time to bake 

*This recipe can make about 15 crackers (30 pcs square)

*Store the crackers in air-tight box, can keep for 3-5 days