Crack a coconut shell and take out coconut and (coconut) water out of it.

Wash coconut and filter coconut water too.

Roughly chop coconut and put in a blender jar. Alternatively you can also grate coconut.

Add Coconut water and 1.5 cup of (regular) water in jar.

Blitz very fine.

Strain this mixture through a muslin cloth and separate the liquid into a bowl.

This is the first extract called as thick coconut milk.

Again put the coconut leftover in blender and add 1.5 cup of more water.

Blend one more time.

Strain. This is second extract called thin coconut milk.

So here we have 2 versions of coconut milk. Thick and thin. Keep them separate and use in your cooking the way you want.