INGREDIENTS
1 1/4 cups
walnuts
3/4 cup
all-purpose flour
1/2 cup
whole-wheat flour
2/3 cup
confectioners' sugar
1/2 tsp
salt
1/2 cup
unsalted butter, melted
2 tbsp
light olive or canola oil
2 tsp
finely grated lemon zest
1 tsp
freshly squeezed lemon juice