INGREDIENTS
about 40 cookies
For the dough:
1
large egg
10 tbsp
unsalted butter, softened
1/3 cup
plus 1 tbsp. (2¾ oz.) sugar
1/4 tsp
salt
1 tsp
vanilla extract
1 1/2 cups
(7½ oz.) unbleached all-purpose flour
To finish:
1
large egg white, lightly beaten with 1 tsp. water
Turbinado sugar, for sprinkling