Weigh the butter and icing sugar accurately. Beat them together until the mixture turns pale, light, and creamy.
Add milk to the creamed mixture and mix well until fully incorporated.
Add wheat flour and milk powder to the bowl.
Crush the ajwain (carom seeds) slightly to release their aroma and add them to the mixture.
Gently fold everything together to form a soft, smooth dough. Do not over-knead.
Take small portions of the dough and shape them into oval stick-shaped biscuits.
Line a baking tray with butter paper and arrange the shaped biscuits, leaving space between each one.
Preheat the oven at 200°C for 3 minutes.
Bake the biscuits at 140°C for 25–35 minutes, or until they are evenly baked and lightly golden.
Remove from the oven and allow to cool completely.
Once cooled, store the biscuits in an airtight container.