Prepare the dough: In a large bowl whisk together flour, salt, and baking powder. In a separate bowl, mix the butter and sugars until combined and smooth. Next, add one egg at a time and mix. Then add the vanilla and allspice and mix. Lastly, slowly stir in the flour mixture until it forms a nice dough.
Bake the cookies: Refrigerate the dough for at least one hour. When ready to bake, pre-heat oven to 350°. These cookies bake best with a baking sheet lined with parchment paper. Roll dough into 1-inch balls. Dip the bottom of a small cup in powdered sugar and lightly press down on each ball to flatten the top slightly. Bake for 8-12minutes.
Glaze: The cookies need to be cooled completely before adding the glaze. To make the glaze, add the powdered sugar, milk and vanilla into a bowl. Whisk thoroughly untilglaze is smooth. Spoon the glaze on the top of each cookie, and smooth out. After all the cookies are frosted, sprinkle your favorite Christmas sprinkles on top.
Enjoy!