The Duchess brought her mother, Doria Ragland, along to the function in grounds of Kensington Palace to launch a cookbook.
"Working on this project for the past nine months has been a tremendous labor of love", she exclaimed, marveling over the women of the Hubb Community Kitchen.
The "Together: Our Community Cookbook", a collection of 50 recipes from the diverse users of the communal kitchen at the Al Manaar Muslim Cultural Heritage Centre, will be used to allow the project to expand and open for up to seven days a week.
I'm going to tell everyone, 'I met her!' I'm going to make everything.
Meghan helped put the group in touch with a publisher and her Royal Foundation provided assistance with legal and administrative issues.
Dishes featured in the book include coconut chicken curry, aubergine masala and caramelised plum cake. The 37-year-old Duchess was joined by Prince Harry and, semi-surprisingly, her mom Doria Ragland for the Kensington Palace event on Thursday, September 20.
Speaking about it, the Duchess, who donned an apron to muck in with fellow volunteers on her visits, said she "immediately felt connected" to the kitchen, which she described as a "place for women to laugh, cry, grieve and cook together".
Meghan came up with the idea for the book during her first of many visits to the Hubb Community Kitchen in North Kensington, just a couple of miles away from her new palace home.
During the event, which Prince Harry also attended, Meghan spoke of how important the multi-cultural Grenfell kitchen was in making her feel welcome in London, saying she was "proud to live in a city with so much diversity".
FYI: Duchess Meghan is wearing a Misha Nonoo skirt, Smythe coat, and Sarah Flint shoes. After the tragedy, they started gathering in order to prepare food for the community and ended up healing together in the process of sharing recipes and experiences. "I'm so privileged to know you", Markle continued.
"I said in the foreword that this is more than a cookbook, and what I mean by that is the power of food is more than just the meal itself, it is the story behind it".
They called their project Hubb, the Arabic word for love, and since January - Meghan has been visiting and cooking with them.