Place remaining 2 tablespoons sugar in a bowl. Coat the balls in sugar. Place on baking sheets, 2 inches apart. Press thumb down in middle of each ball to make an indentation. Sprinkle a little more sugar on tops of cookies.
Bake for about 10 minutes or until just starting to turn light brown around the edges.
Let cool a few minutes and then press bown on the middle of the cookies to make indentation bigger. Fill indentations with Nutella.
Makes about 30 cookies.
This recipe originally appeared on spicysouthernkitchen.com