Mix the dry ingredients

• Combine the flour, salt and baking powder in a bowl.
• Set aside.

Make the cookie dough

• Rub the sugar and lemon zest together with your fingertips until fragrant.
• Add the melted butter, lemon juice and egg and whisk until combined.
• Stir in the dry ingredients until a dough forms.

Coat the cookies

• Scoop the dough into balls.
• Roll each ball in the granulated sugar, then in the powdered sugar.

Fill and arrange

• Arrange the cookies on a baking tray, leaving space between them.
• Make a well in the center of each cookie and add a teaspoon of lemon curd.

Bake

• Bake in a preheated oven at 160 °C until the cookies are set and crinkled.