"If extra was a bride, it'd be me. I promise you I did not know that I was this extra," Porsha Williams tells PEOPLE Antonia DeBianchi is an Associate Editor, Food & Lifestyle, at PEOPLE.

During the festivities, the Queen, 95, was also called upon to cut a celebratory cake — which she chose to do with a large ceremonial sword. As she prepared to cut into the confection ...