Buttery shortbread topped with tangy-sweet lemon custard and a snowfall of powdered sugar.
6 steps, about 55 minutes start to finish.
Make shortbread crust: mix flour, butter, powdered sugar
Press into pan and bake until light golden
Whisk filling: eggs, sugar, flour, lemon juice, zest, salt, baking powder
Pour over hot crust
Bake until set
Cool and dust with powdered sugar
“Pour the lemon filling over the crust while the crust is still hot, which helps the two set together instead of separating into layers. Let the bars cool completely, and even chill them, before cutting so you get clean squares rather than a gooey drag.”