In a large bowl, using a hand mixer beat the butter and sugar together on high speed until completely smooth and creamy, about 2-3 minutes.
Add the egg, vanilla and beat on high speed until combined, about 1 minute.
Add the dry ingredients to the wet ingredients and mix on low until combined. The dough will be soft.
Cover with plastic wrap or aluminum foil, then refrigerate for at least 1-2 hours.
Once chilled, preheat the oven to 350°F
Line 2-3 large baking sheets with parchment paper.
Using cookie cutters in the picture, cut the dough into shapes.
Re-roll the remaining dough and continue cutting until all is used.
Bake for 10-12 mins.
Decorate the cooled cookies with royal icing or tempered white chocolate.