Whisk, sift, or just mix well together using a fork all of your dry ingredients until well blended in a mixing bowl.

Add cubed margarine or butter to dry ingredients and just mash it together. The dough will be sort of crumbly and not completed just yet. Keep going on for a few minutes until you you can see that all of the flour is mashed into the butter.

Begin adding the ice cold water 4 tablespoons at a time and still using the fork mix it all together. Keep adding the water until desire dough-like consistency is achieved. (At this point I just started using my hands mashing it all together.)

Separate dough into 2 or three balls and knead in hand by flattening it out and folding it half many times. Flatten into a disk and wrap in plastic wrap and place in fridge for about 30 minutes to an hour.

*From what I have read the dough can be made in advance days before use but I advise to not have it in the fridge no more than 3 days. I have also heard that it can be frozen for up to 3 months.