First, pour ¾ cup de-husked black gram split (Urad dal) on a dry and clean kitchen towel. Rub nicely to clean the dal. Do not wash them with water or else you will not get a fine powder and will not be able to store it for a long time.
Now, take a frying pan and heat it on a low flame on your gas stove.
Pour the de-husked black gram split and 1 tsp of fenugreek seeds into the hot pan to dry roast them.
Stir the ingredients for about two minutes.
Now, turn the flame off and leave the pan aside to let the ingredients cool completely.
Take a grinder.
Pour the dal and fenugreek seeds into it.
Also, add 1.5 tsp sugar to it.
Grind it nicely to get a fine powder. Now take a strainer.
Pour the powder into the strainer.
Now, pour half a cup of flour, add 1 tsp salt, and 1 cup of rice flour to it.
Strain it nicely to separate the coarser grains and discard them.
Mix the powder nicely once again.
Your masala dosa powder is ready.