INGREDIENTS
1 cup
sliced almonds, blanched
2 cups
all purpose flour
1/2 tsp
baking powder
1/2 tsp
salt
2 sticks
unsalted butter, room temperature, sliced into chunks
3/4 cup
granulated sugar
zest of 1 blood orange (about 1½ teaspoons packed down)
1
egg, yolk and whites separated
1 tsp
vanilla
confectioner's sugar for dusting