01 -
Using a big bowl, beat the butter and powdered sugar together until creamy. Add the vanilla, lemon juice, and grated lemon peel, stirring well. In another bowl, combine corn flour, all-purpose flour, and salt. Slowly mix the dry stuff into the wet mix until the dough is soft.
02 -
Split the dough into two parts and shape each into logs about 1.5 inches wide. Wrap each log individually in cling film and pop them into the fridge for at least one hour, or until they firm up.
03 -
Set your oven to 350°F (175°C) and line a few baking trays with parchment paper. Once the dough is chilled, cut slices about 1/4 inch thick from the logs. Arrange them on the baking trays, leaving about an inch of space between each piece. Bake for 10-12 minutes, keeping an eye on the edges—they should just start to brown. Let them cool on the trays a little before moving them.
04 -
While they're still a bit warm, roll each cookie carefully in powdered sugar. If you love a stronger lemon flavor, mix some zest into the sugar before rolling. Place them on a wire rack to cool fully. For a thicker sugar layer, roll them again once they’ve cooled.