Dry roast Flaxseeds, cumin seeds, sesame seeds(if using) separately separately in a pan one by one, till it gives nutty aroma. Transfer in bowl or dish to cool.
Roast sesame seeds till it starts to turn light brown. Take care not to burn the seeds.
Dry roast dry red chillies and garlic cloves, till it gives aroma and starts getting charred.
Once all the ingredients cool down, grind to fine powder. I use my coffee grinder to grind masalas or spice mixes.
Add black salt/pink Himalayan salt and give a pulse again or mix with spoon.
Transfer to an air-tight container and refrigerate.