In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.
In a large bowl using a hand mixer or stand mixer fitted with the paddle attachment, beat the butter and granulated sugar on medium-high speed until light and creamy, about 3 minutes.
Add the egg, lemon juice, lemon zest, vanilla extract, and lemon extract. Beat on high speed until combined, about 1 minute. The mixture may look curdled, and that is okay. Scrape down the sides and bottom of the bowl.
Add the flour mixture to the wet ingredients and beat on low speed just until combined. The dough will be thick and creamy.
Add the confectioners' sugar to a small bowl for rolling the cookies.
Using a 1-tablespoon cookie scoop, portion out the dough onto a parchment-lined baking sheet. Roll each dough ball in the confectioners’ sugar until completely coated, then place back on the baking sheet close together. (For extra crinkle contrast, you can roll them in sugar a second time just before baking.)
Cover the dough balls tightly and refrigerate for 1 hour.
When ready, preheat oven to 350°F (177°C). Line baking sheets with parchment paper.
Place the dough balls onto the baking sheets, spacing them about 2 inches apart.
Bake for 11 to 13 minutes, or until edges are set and centers still look soft.
Let cookies cool on the baking sheet for approximately 5 minutes, then transfer to a wire rack to cool completely.
Store cookies in an airtight container at room temperature for up to 1 week.