This is a very low-sugar shortbread biscuit recipe. I find that the addition of vanilla helps to give it a sweeter flavour somehow; you could also use a teaspoon of vanilla extract, if desired.
You could try using 5-10 tablespoons of sucralose sweetener (Splenda) instead of the icing sugar, if you desire a sugar-free recipe.
Lovely cookies, taste very similar to normal shortbread. I added almond essence to give them a Christmas flavour and cut them out with a cookie cutter. - 12 Dec 2017