Preheat the oven to 350 degrees. Line your baking sheet(s) with parchment and set aside.

In the bowl of a stand mixer, combine the softened butter and sugar. Cream until smooth.

Add in the egg and the lemon zest. Mix until combined.

Add in the flour, baking powder and salt. Mix thoroughly - stopping the machine, scraping the sides and mixing again.

Use a tablespoon to measure out the dough. Roll into a ball and place on the prepared baking sheet. Carefully flatten the ball into a disc shape.

Bake in the preheated oven for 10-12 minutes or until the edges are set and the center is no longer glossy. Do not overbake or they will become crunchy.

Allow to cool completely before finishing with the glaze.

When ready to assemble, make the glaze.

In a medium bowl, combine the powdered sugar, dash of salt, lemon juice and water. Whisk until smooth.

Drizzle the glaze over the cookies or dip in the glaze. Allow to set at room temp until the glaze crusts over.