Absolutely first class and genuine.
In a moment of self-flattery I once used this word to describe myself. A friend then asked if my use of the word “Pukka” meant that I was a fan of Jamie Oliver. At the time I had never heard of Jamie Oliver, so my answer was no, but I now know that Mr. Oliver is a television chef who uses the word “Pukka” once in a while during the course of his shows. I have still not seen Jamie Oliver’s show, so that’s all I can say for the Pukka-Oliver connection.
I have never warmed up to watching cooking shows. I know cooking shows are wildly popular but to me they seem oddly gluttonous. I would not expect others to share my point of view, but I think it stems from my belief that human beings eat food not for the sensual enjoyment but for the simple purpose of staying alive.