Here is one from 1935 "The Wilken Family" Home Cooking Album The wilken family distributors of blended wiskey It does not say how many it will serve, however this is authentic pease porridge.

Pease Porridge Hot Pease Porridge Cold Pease Porridge in the pot Nine days Old!!

I'm not gonna try it

Recipe for "Pease Porridge Hot" As written: Cook one pint of green peas in a pint of water, with a sprig of fresh mint and a Tablespoon of butter. Simmer slowly, with the lid on the pan, until pretty soft. Then press through a coarse sieve. Season with a teaspoon of salt and a dash of pepper. Put back into the saucepan and add a cup of rich milk. Mix 2 Tablespoons butter and 3 Tablespoons flour to a smooth past. Add to the hot liquid and stir until smooth. Cook for about three minutes, stirring all the time. Serve hot.