INGREDIENTS
1 cup
butter (softened)
1/2 cup
granulated sugar
1
egg yolk
1 tsp
vanilla
1/2 tsp
lemon zest
2 cups
all purpose flour (start with 2 cups and if the dough is too wet, add more a bit at a time)
1/4 tsp
salt
1/2 cup
jam (preferably seedless)
1/2 cup
powdered sugar
2 tsp
lemon juice
2 tsp
milk