Combine butter and powdered sugar in a bowl and mix until light and creamy.
Add vanilla, salt, lemon zest and turmeric powder. Mix until well combined.
Add measured flour to the creamed butter and mix well to make a smooth dough using a spatula.
Wrap the prepared dough with cling film and refrigerate it for an hour or until the dough becomes firm.
Once it is chilled, take it out of the refrigerator and let it sit at room temperature for few minutes.
Roll the chilled dough into small 1-inch size round balls.
Arrange them on a lined baking tray. Let them bake in the preheated oven for about 15 minutes or until the bottom of cookies are slightly browned at 180 degrees C.
Once they are baked, take them out of the oven and allow them to cool down a bit.
When the baked cookies are still warm, roll them in powdered sugar.
Arrange them on a wire rack and let them cool completely.
Once cooled, roll them again in powdered sugar for super white snowballs.