In the large bowl of your stand mixer and using a paddle attachment on low, mix all of the dry ingredients until combined
Make a well in the centre of the flour mixture and add the egg, butter and milk, mixing on low and increasing to low-medium until mixture comes together. Do not overmix -it doesnt need to form a ball yet
Remove the mixture and knead by hand to form a ball, then flatten to a disc
Cover dough with plastic wrap and refrigerate for 3 hours. It can be refrigerated up to 3 days at this point
Divide dough in half, then roll each half out on your work surface, between 2 sheets of baking paper, to avoid the dough from sticking. Using a rolling pin with guides will help -I use this one, with a 6mm or ¼ inch guide Stack the 2 rolled sheets of dough, using the baking paper as a divider and place on a tray in the freezer for 15 minutes. You need to keep the dough flat
At this point, you can preheat your oven to 160℃ fan forced, or 320℉ fan forced
After 15 minutes, remove dough from freezer and cut out shapes. I use a 7cm round cookie cutter for the cookies in the photos
Reroll the excess dough, freeze again for a few minutes, then cut out more shapes.
Using an offset spatula, gently lift the shapes and place on a lined baking tray. I use a perforated baking sheet to help my cookies keep their shape. Baking paper is fine, but the cookies will likely have a tiny bit of spread. Bake cookies for 15 minutes, until golden brown. Remove from oven and allow to cool for 15 minutes, before moving the baked cookies to a cooling rack to cool completely
Eat as is, or decorate with rolled fondant, cutting shapes with the same cutter you used for the cookies. I use this fondant roller for consistent thickness. To attach the fondant to the cookie, brush cookie with a little sugar syrup or water Store in an airtight container for 1 week.If heat sealed, they will last for 8 weeksCan be frozen once sealed, for 3 months