INGREDIENTS
1 1/3 cups
all-purpose flour
2/3 cup
cornstarch
1/4 tsp
salt
1 cup
unsalted butter, at room temp
1/2 cup
confectioners' sugar
2 tsp
vanilla extract
Assorted colored sanding sugars
1/2 cup
Nutella or chocolate-hazelnut spread, for filling
Equipment: Pastry bag or sealable plastic bag