Ingredients
- 1 cup (2 sticks) unsalted butter, softened
- 3/4 cup granulated sugar
- 1 large egg plus 1 egg white, beaten
- 1 teaspoon pure vanilla extract
- 2 1/2 cups sifted all-purpose flour
- 1 tablespoon finely chopped fresh rosemary
- 3/4 teaspoon coarse salt
- 1/2 cup fine sanding sugar
Preparation
Step 1
Put butter and granulated sugar in the bowl of an electric mixer fitted with the paddle attachment; mix on medium speed until pale and fluffy, about 2 minutes. Mix in whole egg and vanilla. Reduce speed to low. Add flour, rosemary, and salt, and mix until combined.
Halve dough; shape each half into a log. Place each log on a 12-by-16-inch sheet of parchment. Roll in parchment to 1 1/2 inches in diameter, pressing a ruler along edge of parchment at each turn to narrow log. Transfer to paper-towel tubes to hold shape, and freeze until firm, about 1 hour.
Preheat oven to 375. Brush each log with egg white; roll in sanding sugar. Cut into 1/4-inch-thick rounds. Space 1 inch apart on baking sheets lined with parchment. Bake until edges are golden, 18 to 20 minutes. Let cool on sheets on wire racks. Store