Slice-and-bake vanilla sablé cookies are easy to make. Traditional recipes are made with an egg yolk or an egg, but this recipe is eggless, replacing the egg with a little milk
Use a mixer to cream the butter and sugar+salt. Beat in vanilla.
Add the dry ingredients to obtain a dry crumble, and finally add the milk, which magically transforms it into a cookie dough.
Press/roll out the dough into a long 14-inch log, slice in half (for easier storage in fridge). Roll each log in turbinado sugar (~¼ cup) and then wrap in plastic and chill overnight.
Slice the cookies fairly thin and bake at 350ºF. I like to bake them around 16 minutes - edges should be golden.