Preheat oven to 350°F. Line a baking sheet with parchment paper and set aside.
With a stand mixer or hand mixer, mix together the room temp butter, powdered sugar, lemon zest, lemon juice and egg until combined. (There will be small chunks of butter left in the batter and that's okay!)
1 stick (8 Tablespoons) butter, room temp, 1/2 cup powdered sugar, 1 lemon, zested, 2 Tablespoons lemon juice, 1 egg, room temp
Stir in the flour, baking soda, and salt with a spatula until combined. No need to chill the dough.
1 1/2 cups flour, 1/2 teaspoon baking soda, 1/8 teaspoon salt
Using a 2 Tablespoon cookie dough scoop add each dough ball to a parchment lined cookie sheet.
Bake the cookies for about 12 minutes or until the tops are puffed and slightly hardened.
Let the cookies rest on the cookie sheet for 10 minutes then remove to a cooling rack to cool completely.