The Spenser novels

I read "The Godwulf Manuscript"　by Robert B Parker.
My English conversation teacher told me that this book is an easy read for learning English.
Using the kindle to look up unfamiliar words as I read.
The pattern of the story is case, request for work from Spencer, investigation of the surrounding area, return home and cook for himself, investigation, return home and cook for himself, repeat case.
Spencer, a private detective, takes a cold beer out of the fridge first thing when he gets home.
This reminded me of a TV drama that was popular in Japan in the 1992s, in which an elite bachelor businessman is pensive, drinking a cold of beer from the refrigerator in the living room of his luxury apartment as soon as he gets home.
The circumstances of a detective pursuing a case and an office worker in business are different, but the first thing he does when he gets home is to drink a cold of beer.
This is fascinating.
Spencer, however, cooks his own food after two beers.
The food is truly a man's cuisine.　Roughly, but it looks very tasty.
Then my English conversation teacher lent me a book called "Spencer's Cooking” in Japanese.
The book includes recipes for dishes from the Spencer series, as well as restaurants and maps of Boston, where the story takes place.
The recipe looks like something I could make myself if I had all the ingredients.
There was one restaurant I knew.　It is "Dunkin' Donuts".
Currently in Japan, there seems to be only U.S. military bases.
I looked up Dunkin' Donuts and found that it comes from dipping donuts in coffee.
Food culture and detectives are similar to the Onihei series in Japan.