In a heavy bottom pan, bring milk to a boil while continuously stirring. Do not let the milk stick to the bottom of the pan. Keep stirring continuously with a ladle.
Once the milk (homogenized milk) comes to a boil, reduce the flame and add diluted vinegar or the coagulant of your choice. If using raw milk, turn off the flame and wait for a minute or two before adding the coagulant.
Once you see that the milk has coagulated. Curdles have separated and clear hay is left behind, add 7-8 ice cubes or use ice-cold water.
Strain the curdled milk on to a cheesecloth (or any similar cloth) and collect the milk curdles or Chena.
Wash the Chena under the running water 2-3 times.
Now remove the excess water from the Chena by squeezing and turning the cloth. Hang overnight and let gravity do the job or manually remove out all water from the Chena by squeezing with hands. Stop squeezing when water ceases to appear on the cloth surface.
Take out the Chena on a clean countertop or a big plate. Knead using the palm of your hands in a forward motion. Keep kneading till it becomes smooth and grain-free. Immediately top kneading as Chena starts to leave grease.
Divide the dough into 14 equal pieces for medium-sized Ras Malai. Take a portion in hand and squeeze between palms. Then gently roll to form a crack-free ball. Then, place the ball in one hand and gently press with the other hand to flatten it. Similarly, form crack-free disk-shaped Ras Malai.