1. Cut the cold butter into cubes.
2. In a bowl mix flour, baking powder, baking soda and sugar.
3. Add the cubed butter and rub with your palms to incorporate the butter into the flour.
4. Take the flour butter mixture in your hands and lift it up the bowl and rub. This way you get air inside the mixture and the crust will be flaky.
5. Leave some pea sized chunks of butter while rubbing.
6. Add cold water and bring the dough together. Let the dough be crumbly and not smooth.
7. Divide it into two parts with one portion larger than the other.
8. Place them into cling wraps, cover and refrigerate until firm.