Preheat the oven to 350°F. Line two baking sheets with parchment paper or silicone mat and set aside.
Mix the sugar and the lemon zest and massage with your clean fingertips until the oil and aroma of the zest is released.
¾ cup Sugar, 1 tablespoon Lemon zest
Whisk all the dry ingredients and set aside.
2 cups All-purpose flour, ½ tablespoon Ginger, ¼ teaspoon Salt
Cream the butter and the sugar mixture until soft and fluffy.
¾ cup Sugar, ⅔ cup Butter, 1 tablespoon Lemon zest
Add in the egg, vanilla extract, lemon extract, and lemon juice. Beat until all is well incorporated.
1 Egg, 2 tablespoon Lemon juice, 1 teaspoon Vanilla extract, ½ teaspoon Lemon extract
Mix in the dry ingredients until no trace of flour is seen.
Using a tablespoon, take enough dough to shape a small ball. Round it between your hands to share a smooth ball.
Place them on the prepared baking sheet leaving an inch space between them. Using a measuring spoon such as ½ tsp, make a small dentation in the center of each ball.
Bake them for 10-12 minutes. When the edges are set they are down.
Now you need to act fast. While the cookies are still soft and hot, run a round cookie cutter around each cookie to smooth out the edges. The dent in the center will puff up after baking. Press the center with the same measuring spoon to make the dent deeper.
Let cool down completely, before filling up with the lemon curd. See the recipe for the lemon curd.