Cream butter, sugar, vanilla and egg in a mixing bowl until well combined.
In a small bowl, add the dry ingredients and mix until well combined.
Gradually pour in dry ingredients into the wet ingredients bowl and mix until well combined.
Once all ingredients are mixed and a dough ball has formed. (if still sticky add in a half cup of flour and mix until a firm ball of dough forms.) Place dough into a ziplock bag or in a bowl with foil to place on top.
Place in fridge for 2 hours so that the dough can rise. Note: It won’t double in size like bread dough.
Pull dough out of fridge and let it sit on the counter for 1 hour.
Preheat oven to 350 degrees.
Roll dough out and using the skull cutter upside down, cut out cookie. Using the santa hat, cut outcookies. Take the skull cutter and using it upside down cut out the top part of the skull in the hat.
Using the skull cookie you cut before, attach the skull and the hat together. You can do this by gently using your fingers to ply the dough of the 2 cookies together.
Place on parchment covered cookie sheet and place into oven.
Bake for 8 minutes.