Put the flour, salt and sugar in a high-sided bowl.
Operate the handmixer on speed 1 and start kneading. Use flat whisks for this preparation.
Add the butter into small pieces and with the electric mixer start preparing the base for the galettes.
Mix everything at low speed, when the dough becomes sandy, proceed to increase the speed and work at high speed for one minute.
Add the 8 tablespoons of ice water and knead until the mixture is smooth.