Preheat oven to 350°F. Line baking sheets with parchment paper or silicone liners.
Whisk together the flour, nutmeg, baking powder, and salt. Set aside.
Using an electric mixer on medium speed, beat the butter and 1/3 cup sugar until creamy. Mix in the egg and vanilla.
Stir in the flour mixture until smooth. (The dough will be crumbly but should hold together when pinched.)
Mix together the cinnamon and 2 tablespoons of sugar in a shallow bowl.
Using about a tablespoonful of dough at a time, squeeze the dough together in your hands a few times to help it hold together. Roll each portion of dough into balls.**
Roll each ball in the cinnamon-sugar mixture, and place on baking sheets. Flatten the top of each cookie slightly. (These cookies won't spread much.)
Bake for 12 to 15 minutes, or until golden brown. Cool on baking sheets for 5 minutes, then transfer to a wire rack to cool completely.
Notes
*To make Chocodoodles:* Replace 2 tablespoons of flour with unsweetened cocoa powder.**I usually use a #50 scoop (about 1 & 1/4 tablespoons) to portion the dough. Then I squeeze it a few times in the palm of my hand before rolling it into a ball between my palms. In my experience, that method helps the crumbly dough hold together better.Recipe slightly adapted from How to Be a Domestic Goddess.