Aga saga

Etymology
Rhyming phrase, named for the AGA cooker, a type of stored-heat oven popular in British country houses in the early 20th century. Coined in 1992 by novelist Terence Blacker in reference to the work of Joanna Trollope.

Noun

 * 1)  A kind of popular novel set in a suburban or rural location and featuring domestic and emotional themes involving middle-class characters.
 * 2) * 2007, Saying that, if Judy does retire and write a rollicking Aga-saga about, say, a middle-aged woman with a loving, ambitious yet utterly frustrating husband, I'd certainly buy it in the three-for-two. — Grace Dent, The Guardian, 22 Jun 2007, G2, p. 3