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Ten shillings in sixpences, forty-two pounds in thruppences, and seven pence. It’s going to be a rather rich pudding, but who cares.
— Chef Ivor Clarke · Do Not Adjust Your Set

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
A comic recipe listing absurd sums of old coins as pudding ingredients, then shrugging off the cost with 'who cares'. The joke is treating money as food and calmly admitting the result will be extravagantly rich.
Context reviewed