First, take the Moka pot and fill the bottom chamber with water. Put it on the stovetop. Take a separate pot, pour milk in it, and then heat it until the bubbles start around the edges.
Then fill your filter with 30 grams of coffee and pack it tightly. Then pack the filter by putting the coffee in enough amount till the filter is full. Then put the hot water in the lower chamber of the Moka pot.
Make sure that the level is up to the same metal steam valve. Then put the filter inside and screw on the top. Then place the Moka pot on high flame until you hear coffee coming through the filter.
Check out the whole process carefully until no more coffee is coming out. Then you can remove the pot from the stove.
Take a mug, pour your espresso, and then top it with hot milk. It is recommended to take the ratio of 1:4. You can change the ratio according to your personal preference.