Hazelnut Kisses

Preheat oven to 375°F. Line cookie sheets with parchment paper; set aside. In a large bowl stir together the cookie dough and flour. Shape dough into 1 1/4-inch balls. In a small bowl whisk together egg and water. Place nuts in a shallow dish. Roll balls in egg mixture, then in nuts to coat. Place balls 2 inches apart on the prepared cookie sheets. Press your thumb into the center of each ball.

Bake for 10 minutes or until golden. If cookie centers puff during baking, re-press with the back of a measuring teaspoon. Transfer to a wire rack and let cool. Fill cookies with chocolate-hazelnut spread.