UserAgent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.110 Safari/537.36

Steps to reproduce the problem:
1. The webserver sets a cookie in the HTTP Response which expires in 30 days;
2. Chrome receives the response and sets the cookie;
3. Chrome is closed unproperly (killed process or reboot of PC) a few seconds after step 2;
4. Chrome is reopened and the same page where the cookie was set is opened;

What is the expected behavior?
The cookie should still be present in subsequent HTTP Requests to the web site.

What went wrong?
The cookie disappeared from the HTTP Requests.

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 57.0.2987.110  Channel: stable
OS Version: 6.3
Flash Version: 

I've checked the 'Cookies' file stored in 'C:\Users\my_user\AppData\Local\Google\Chrome\User Data\Default' and it seems it is only updated approximately once every minute or so. It looks like new cookies are all stored in RAM for a while and then saved as a batch to the hard drive.
I've also tried to set the cookie directly with javascript (using js-cookie library) but the outcome was the same:

Cookies.set('cookie_name', 'cookie_value', { expires: 30 });

How can I store cookies instantly and persistently?