Add the 4 sticks (2 cups) of butter and 2 cups of white sugar to your mixer. A word about the butter, I use Sweet Cream Salted Butter when I am baking and I think it tastes great with these sugar cookies too. The butter needs to be softened but still cold. A prime culprit for dry sugar cookie dough is butter that is too warm and soft. I let the butter sit out on the counter for just under an hour before I start making the cookies- this seems to be the perfect amount of time. The butter is still cold to the touch but you can press into the stick with your fingers. In the past, when in a rush, I have softened the butter in the microwave but inevitably the dough that I get is more on the "crumbly" side.
Cream the butter and sugar until it is completely mixed (3 minutes on medium-high should do the trick)
Add 2tbsp of vanilla and 2 eggs. I know that sounds like a lot of vanilla but this recipe needs a little extra moisture and the cookies will taste great.
Mix the cookie dough until light and fluffy ( about 3 more mins)
Add 4 tsp of Baking Powder and mix
Mix in the 6 cups of flour two cups at a time. Don't over- mix the dough when you are adding the dry ingredients. Mix it only until the flour is incorporated into the dough.
After you have added the 6 cups of Flour the dough should be firm but not dry or crumbly. If the dough seems to dry, add a tiny bit of vanilla or milk (start with a tsp) and mix again.
Roll a handful of dough out on a prepared surface(powdered sugar is the best) until it's about 3/8" thick.
Cut out shapes with cookie cutters
Bake in an oven pre-heated to 350 degrees for 8-10 mins depending on the size of the cookie cutter you used. Do not over-bake! We like thicker sugar cookies so they will hold a good amount of frosting. If you make your cookies on the thick side as we have done- you should cook them on the longer side. They might not look done to you but they are. Take them out of the oven, You don't want them to start growing around the edges the way a Chocolate Chip Cookie would, for example. Over-baking is the prime culprit if you feel your sugar cookies seem dry. If you roll out thinner cookies or use smaller cookie cutters bake the cookies for less time.
Let your cookies cool and then they are ready for frosting!