I always call them butter cookies. Apologies for the love of convenience. I recall a few years back I received a big bag of these for New Year gift. It was so rich and was really really and really hard-to-put-down. The whole family loved it and we finished a 2-pound bag in only a few days.
I used to have the recipe with egg yolks but again…. I lost it. The problem back then when making this cookies was that the dough tended to melt very fast while piping. The hot/humid weather in Bangkok was to blame.
I found a recipe using egg white and strong bread flour that caught my interest. I doubted how bread flour would help with piping. Here is what Apple Pie Patis Pate quoted in this web site “…..The sandy texture reminiscent of shortbread is achieved through the use of small amounts of liquid and sugar to minimize gluten development. The spread is also limited through the use of strong bread flour, allowing the piped cookies to hold the star tip pattern during baking….”. Genius huh !!!
The recipe below is from Apple Pie Patis Pate who adapted it from Michel Suas’ Advanced Bread and Pastry. What I did differently was adding a few drops of vanilla extract and decorated with chopped dried cranberries.
For the wet ingredients:
12 ounces / 340 grams butter, at room temperature
1 teaspoon ground cinnamon (I omitted this)