-
In large bowl, stir together flour, baking soda and salt.
-
With electric mixer, beat together butter and sugar until light and fluffy, scraping sides of bowl as necessary with rubber spatula. Beat in egg, lemon juice and lemon extract until uniform.
-
With mixer on low, gradually add dry ingredient mixture to mixing bowl and stir until just combined.
-
Cover and chill dough at least 4 hours and up to 3 days.
-
Preheat oven to 350 degrees F. Line two baking sheets with parchment paper.
-
Place powdered sugar in shallow bowl.
-
Scoop out heaping tablespoon-sized portions of chilled dough and roll them into balls. Roll each ball in powdered sugar to cover completely. Arrange balls on baking sheet, leaving 2-3 inches between each.
-
Bake 12-14 minutes, or until edges of cookies are set. Cool 5 minutes on baking sheet, then transfer to wire rack to cool to room temperature.