British Dietetic Association

British Dietetic Association spokeswoman Melissa Little said there were ways to make the toast sandwich much better for not that much more money.

Ms Little said: "You can add an egg for 8p, it's not much and it would give you some protein and keep you fuller for longer - and it would make it taste much better.

"Half a can of sardines for 19p would provide good fats, you would get some fish, and again make you feel fuller for longer.

"Even adding some vegetables, such as cucumbers or carrots - would give you some more nutrients."

She suggested the exercise did highlight that people are struggling to pay for grocery bills and looking for alternatives.

The more people talk about making healthy meals for less money, the better informed people would be, she said.

The first instalment of of Mrs Beeton's Book of Household Management was published in 1861.

It sold over 60,000 copies in its first year of publication and nearly two million by 1868.

As well as recipes the book contained advice on household management, childcare, etiquette, entertaining and the employment of servants.

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