Icebox Butter Cookies

• 2 sticks (1 cup) unsalted butter, room temperature
• 3/4 cup granulated sugar
• 1 large egg
• 1 teaspoon pure vanilla extract
• 2 1/2 cups plus 2 tablespoons sifted all-purpose flour
• 1 teaspoon salt
• 1/2 cup sanding sugar (or granulated sugar), for rolling

1. In the bowl of an electric mixer fitted with the paddle attachment, beat the butter and granulated sugar on medium speed until light and fluffy, about 3 minutes, scraping down the sides of the bowl as needed.
2. Add the egg and vanilla, and beat to combine.
3. Add the flour and salt; mix on low speed until combined.
4. Turn out the dough onto a clean work surface.
5. Divide in half and roll each piece into a log about 1 1/2 inches in diameter.
6. Wrap in parchment paper, making sure to cover ends completely, and place in empty paper-towel tubes, if using.
7. Refrigerate until firm, at least 1 hour or overnight.
8. Preheat the oven to 350F, with racks in the upper and lower thirds.
9. Line two large baking sheets with parchment paper.
10. Let dough stand at room temperature until soft enough to slice, about 15 minutes.
11. Roll dough logs in sanding sugar, coating them evenly, and slice into 1/4-inch-thick rounds.
12. Place about 1 inch apart on prepared sheets.
13. Bake, rotating sheets halfway through, until golden brown around the edges, 15 to 20 minutes.
14. Transfer cookies to a wire rack to cool completely.
15. Finely chop 4 ounces bittersweet chocolate (3/4 cup).
16. Sift out fine dust and discard.
17. Follow instructions for the Icebox Butter Cookies, adding chopped chocolate along with the flour.
18. Finely chop 4 ounces (1/2 cup) lightly toasted pecans or pistachios.
19. Sift out fine dust and discard.
20. Follow instructions for the Icebox Butter Cookies, adding chopped nuts along with the flour.

unsalted butter, sugar, egg, vanilla, flour, salt, sanding sugar

Taken from www.epicurious.com/recipes/food/views/icebox-butter-cookies-390172 (may not work)