Raspberry Lemon Bars

INGREDIENTS

For the Crust::

9 tbsp

unsalted butter (1 stick, plus one tablespoon)

1/2 cup

powdered sugar

salt

2 cups

flour

For the Filling::

1/2 cup

superfine sugar (or regular granulated)

egg whites

egg

2/3 cup

freshly squeezed lemon juice (from 3 lemons)

2 tbsp

lemon zest (from 2 lemons)

2/3 cup

unbleached, all-purpose flour

salt

1 cup

frozen raspberries, defrosted

1 tbsp

confectioner's sugar