Using a food processor, mixing bowl and dough cutter (or a fork), add the flour (both), sugar and salt into the processor or bowl. Pulse until combined. Then add the cubed butter, pulse until crumb-like. Mix together in a small bowl the vinegar and water. Add the water/vinegar mixture gradually (you may add less or more than what is in the recipe depending upon the humidity in your area). Pulse until the dough is combined, but there is still some flour remaining – in other words, it shouldn’t be a smooth ball of dough (if that is the case, you’ve pulsed to much and added too much water).