Thumbprints and Ball Cookies

Roll dough into 1-inch balls. (For marbleized cookies, roll out a 1/2-inch-thick rope each of vanilla and chocolate dough. Pinch 3/4-inch piece from each rope and roll together into a ball.) Roll in finely chopped nuts, crushed candies, or sanding sugar, if using. Arrange on parchment-lined baking sheets, spacing each 1 inch apart.

For thumbprints: Press a well into the center of each using your finger. Refrigerate until firm, about 30 minutes. Bake at 350 degrees for 7 minutes. Remove from oven, and press well again with handle end of a wooden spoon. Bake until firm, 7 to 9 minutes more.
For ball cookies: Refrigerate until firm, about 30 minutes. Bake at 350 degrees until firm, 14 to 16 minutes.

Let cool completely. Spoon jam, ganache, dried fruit, or candied orange filling into thumbprints. For chocolate-dipped ball cookies, dip cooled cookies in melted chocolate; sprinkle with candies, and let set in refrigerator.