IRISH POTATO COOKIES This dough must chill before baking. 1 and 1/2 cups white (granulated) sugar 1 cup salted butter ( 1/2 pound, 2 sticks), softened to room temperature 3 large eggs 2 teaspoons cream of tartar 1 teaspoon baking soda 1/2 teaspoon salt 1 teaspoon vanilla extract 1 and 1/2 cups all-purpose flour (pack it down in the cup when you measure it) 3 cups instant mashed potato flakes (I used Hungry Jack Original) 1 cup finely chopped walnuts (measure AFTER chopping) 1/2 cup powdered (confectioners') sugar in a bowl for later Place the white (granulated) sugar in the bowl of an electric mixer. Hannah's 1st Note: This recipe is a lot easier to make if you use an electric mixer. You can do it by hand, but it will take much longer. Add the softened butter and mix until the two ingredients are well combined and the mixture is light in color and fluffy. Add the eggs, one by one, beating after each addition. Add the cream of tartar, baking soda, and salt. Mix until everything is well combined. Add the vanilla extract and mix it in. Measure out the all-purpose flour in a separate bowl. Mix it into the sugar, butter, and egg mixture in half-cup increments at LOW speed, mixing well after each addition. Add the instant mashed potato flakes in half-cup increments, mixing well after each addition. Beat until everything is well incorporated. Mix in the chopped walnuts. Beat for at least a minute on MEDIUM speed until everything is thoroughly combined. Hannah's 2nd Note: At this point, you can add several drops of green food coloring if you are making these cookies for St. Patrick's Day. Try to achieve a nice pale green. Scrape down the sides of your mixing bowl and give your Irish Potato Cookie dough a final stir with a wooden spoon by hand. Prepare your cookie sheets by spraying them with Pam or another nonstick cooking spray, or covering them with parchment paper. Scoop out a small amount of cookie dough with a spoon from your silverware drawer and try to form a dough ball with your impeccably clean hands. If this is too difficult because the dough is too soft, cover your bowl with plastic wrap and refrigerate it for 30 minutes to an hour. (Overnight is fine too, but then don't forget to shut off the oven!) When you're ready to bake, preheat the oven to 350 degrees F., rack in the center position. While your oven is preheating, place the powdered sugar in a small bowl. You will use it to coat the cookie dough balls you will form. Form balls of cookie dough 1 inch in diameter with your impeccably clean hands. Roll the dough balls in the bowl of powdered sugar, one at a time, and place them on the cookie sheets, 12 dough balls to a standard-sized sheet. Flatten the dough balls a bit with a metal spatula or the heel of your impeccably clean hand. Bake at 350 degrees F. for 10 to 12 minutes, or until your cookies are golden around the edges. Take your cookies out of the oven and cool on the cookie sheet for 2 minutes and then remove them to a wire rack. If you've covered your cookie sheets with parchment paper, all you have to do is grasp the edges of the paper and pull them, cookies and all, onto the wire rack. Yield: Approximately 8 dozen tender and delicious cookies, depending on cookie size