Once the butter is cut in, add the ice water through the chute about a tablespoon at a time while you continue short pulses. The mixture will not look like cookie dough – it will probably look a little crumbly. Periodically check to see if the dough pinches together. When the dough begins to hold together, turn it out onto saran wrap, form into a ball, wrap and press it into a disc. If you did one large batch, separate the dough into two discs. Refrigerate for an hour or up to two days.