Add the butter to a bowl of a stand mixer. Mix until smooth.
Add in the sugar. Mix until combined.
Add in the lemon zest, anise seeds, kosher salt, eggs, buttermilk, and baking soda. Mix until combined.
Add 1 cup of flour to the bowl. Mix and the add another once it's incorporated. Add in another ½ cup of flour. If the dough is scoopable it's done. Add another ½ cup of flour if you think it needs it.
Chill the dough for 30 minutes in the fridge. Make sure to cover the bowl.
Preheat the oven to 350 degrees.
Scoop out about 1 TBS worth of dough onto a parchment lined sheet pan. Evenly space no more than 8 cookies on the pan.
Bake for 13 minutes or until the edges begin to brown. Repeat until you have baked all the cookies.
Allow the cookies to rest on the pan for 1 minute before removing the sheet with the cookies on it to a cooling rack to finish cooling.
Notes
To make pan banging cookies:
Bake the cookies for 4 ½ minutes or until the cookies begin to spread. Then pick up and drop the pan onto the rack in the oven. The center will drop.
Repeat every 90 seconds til the center of the cookies no longer drops or the edges are beginning to brown.
13 total minutes bake time at 350 degrees
To make a lemon glaze
Juice the 1 lemon that you used for the zest.
Slowly stir in powdered sugar until it has the consistency of a glaze. You should need around 1 cup. I also add a pinch of salt.
Using a fork, drizzle the glaze over the cookie. Add sprinkles if you like. Give the glaze 15-30 minutes to harden some.