INGREDIENTS
1 1/3 cups
(s all-purpose flour)
1/3 cup
packed light brown sugar
1 stick
unsalted butter (cold, cut into 1/2-inch pieces)
4
large egg (s)
1/2 tsp
vanilla extract
1 1/2 cups
(s powdered sugar, divided)
3/4 cup
(s fresh lemon juice)
2 tsp
lemon zest (optional)