In the name of Allah, the Beneficent, the Merciful

A further step involves
The next thing we do is that
In the next step of the process
One of the main phases of the process
The next stages in which X is done is that

NB. Please be careful when using after that and after which which require totally different approaches in usage.

e.g.₁ A caldron is heated and oil is poured. After that, the meat which has been cut into small cubes is dropped into the heated caldron.

e.g.₂ A caldron is heated and oil is poured after which the meat which has been cut into small cubes is dropped into the heated caldron.

3. 
   When we are mentioning the last step, the following can be used:
   

The last step is
Finally,
At the end of the process,
In the last stage of the process,
The process finishes with
We end the process with

e.g. The last step is that we take out the ready plov into a large porcelain plate and enjoy it around the whole family.

Some additional phrases that can be used to join two stages together:

a. After/when/Once + The Present Perfect tense, … .

e.g. After all the ingredients have been simmered for some time, rice can be laid out on top of the mass.

b. After The Passive tense, …

e.g. After sprinkling some boiled water all over the mass, wait until the water has totally been absorbed.