Here is the recipe for the cookies and frosting I made for my party last weekend. I got this recipe from my friend Serena, who adapted it from a recipe on Allrecipes.com. They're so good--nice and soft. I'll just paste everything in her words...
Best Sugar Cookies Ever
6 cups all-purpose flour
1 tablespoon baking powder
1 teaspoon ground nutmeg
1 pinch salt
2 1/2 cups white sugar
1 1/2 cups butter, softened
1 teaspoon baking soda
1 cup sour milk (add 1 T of vinegar to regular milk and let sit for 5 minutes)
3 eggs, beaten
1 teaspoon vanilla extract
Preheat oven to 350 degrees. Line cookie sheets with parchment paper.
In a medium bowl, stir together 4 cups flour, baking powder, nutmeg, salt, and sugar. Cut in the butter until the mixture resembles coarse crumbs. Stir in baking soda, sour milk, beaten eggs, and vanilla. Stir as little as possible, and add the remaining flour as necessary to make dough thick enough to roll out.
On a lightly floured surface, roll out dough 1/4 inch thick. Cut into desired shapes with cookie cutters. Place cookies 1 inch apart on the prepared cookie sheets.
Bake for 8 to 10 minutes in preheated oven. Cool on baking sheets.
Buttercream Frosting for Sugar Cookies
1 cup butter, softened
8 cups confectioners' sugar (powdered sugar)
2 teaspoons vanilla extract
1/2 cup milk
In a mixing bowl, cream butter. Beat in sugar and vanilla. Add milk until frosting reaches desired consistency. Food coloring can be added, but if the frosting is too watery, add more confectioner's sugar.