grate. keep in refrigerator until ready to use.
step 1: whisk together dry ingredients in a medium sized bowl.
step 2: grate the butter directly into the flour blend. mix in the butter occasionally with a fork as you grate. after all the butter is grated, mix to cover all butter with flour.
step 3: in a small bowl, combine the sour cream and ice water.
step 4: make a well in the flour/butter mix. pour about half of the water mixture into the flour and mix with a fork. no need to thoroughly combine – a rough mix is fine. then pour the rest of the water mixture into the dough. roughly mix 