Lemon-Lime Shortbread Thumbprint Cookies

INGREDIENTS

1 cup

unsalted butter, (room temperature)

2/3 cup

granulated sugar

1/2 tsp

vanilla bean paste (or pure vanilla extract)

juice of 1/2 fresh lime

zest of 1 small lime

salt

2 cups

(plus 2 tablespoons unbleached all-purpose flour)

1 cup

Lemon Curd, (homemade or store bought For the glaze:)

1 cup

confectioners' sugar

juice of 1/2 fresh lime