Preheat oven to 350 degrees and line two cookie sheets with parchment paper
Using a medium bowl, whisk the flour, baking soda, kosher salt
Using a standing mixer, beat the butter, sugar, lemon zest, eggs, and vanilla until combined, creamy and smooth
Beat in the ricotta cheese until combined
Gradually beat in the dry ingredients until combined and a soft dough forms
Using a small cookie scoop, scoop some dough onto the cookie sheets about 2 in apart
Once trays have a minimum of 12 cookies, place in the oven and bake for 10 - 12 minutes or until lightly brown
Remove and place on the counter to cool
Once cookies are cooled, place onto a wire rack
Repeat steps until all the dough are baked