1/2 cup butter, room temperature
3/4 cup confectioners’ sugar
2 tsp lemon extract or 1 tsp lemon oil
1 tsp vanilla extract
2 cups minus 1 tbsp cake flour
1 tbsp cornstarch
1/4 tsp baking powder
1/4 tsp salt
4 tbsp milk
additional confectioners’ sugar, for dusting
Recipe
In a large bowl, cream together the butter and confectioners’ sugar until smooth. Beat in lemon extract, vanilla extract. Sift in cake flour, cornstarch, baking powder and salt, mixing with the mixer on low speed to keep the flour from flying. Add in 3 tbsp milk and beat until mixture just comes together. Dough should be slightly sticky, but not wet.
Shape dough into a large log about 1 1/2-in in diameter. Wrap in wax or parchment paper.
Chill dough in fridge for at least 1 1/2 hours.
When ready to bake, preheat oven to 350F. Line a baking sheet with parchment paper.
Slice dough log down the middle to create two half-circle logs. Lay logs with the flat side down and cut slices of dough that are a bit under 1/4-inch thick (no more than 1/4-inch or they will turn out a bit softer). Transfer cookies to cookie sheet.
Bake for 9-12 minutes, until edges just begin to turn golden.
Cool for 5 minutes on the baking sheet, then transfer to a wire rack to cool.
When cookies are cooling on the wire rack, generously dust with extra confectioners’ sugar.