In a medium bowl, mix the flour, baking soda, and salt. Set aside.
3 cups All-purpose flour, 1 tsp Baking soda, 1 tsp Salt
Using a mixer, beat the melted butter (make sure it is cooled to room temperature), sugar, and brown sugar for 2 minutes on high speed.
1 cup Unsalted butter, 1 1/4 cups White granulated sugar, 1/4 cup Brown sugar
Add in the 2 lemons zest, lemon juice, vanilla, egg, and egg yolk. Mix until combined. Add in the dry ingredients and mix on low speed until just combined.
1 tsp Pure vanilla extract, Zest of 2 lemons, 1/8 cup Lemon juice, 1 Large egg, 1 Large egg yolk
Preheat the oven to 350°F. Line two cookie sheets with parchment paper. Let the cookie dough rest for 10 minutes. This will help prevent spreading.
Use a 2 TBSP or 2 oz cookie scoop. Scoop 6 cookie dough balls per cookie sheet.
Bake 1 sheet at a time. Bake for 9-11 minutes. Bake until the edges are a little bit of golden.
Let the cookies sit on the hot pan for 5 minutes before transferring to a cooling sheet. Cool the cookies completely before decorating.