Weigh out ingredients
You'll need all-purpose flour, baking soda, warm spices, sugar, butter, molasses, egg, milk, and vanilla.
Make the dough
Whisk together the dry ingredients. In a separate bowl, cream the butter, sugar, and molasses together. Add the egg yolk, milk, and vanilla, then fold in the dry ingredients. Chill the dough overnight.
Roll out the cookie dough and cutout gingerbread men. Bake the cookies for about 10 minutes at 350 degrees F. Allow them to cool completely on the baking sheet.
Make the royal icing and decorate the gingerbread men as desired.