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A ‘marmalade fundamentalist’ is one who ‘adheres strictly to the basic principles’ of marmalade making: using only Seville oranges; they believe this is the only and proper orange to use and all others would be wrong.

To ‘be in good company’ means to be in the same situations someone important or respected.

‘Laden’, heavily loaded or weighed down, is best replaced with ‘loaded’. ‘Burdened’ means ‘a load, typically a heavy one; often with a negative implication’; ‘stuffed’ is used to mean ‘filled with some material’.

‘Lean on’ means rely on or derive support from someone or something.

In this context, ‘set’ means harden into a solid or semi-solid state.

While we could use delicious, this is not the full meaning of sublime; elevated better fits the context.

Although sounding negative, fearsomely is used for emphasis, like very or really, but with the element of being frightened and scared.

In this context, ‘dark-arts’ refers to techniques or practices that are regarded as mysterious.

Takes much effort: faff - something that takes a lot of effort or causes slight problems | spend time in ineffectual activity

Founder: someone who establishes an organisation. Found [v.]: to bring something into existence.

Savoury dishes are those which is not sweet. Savoury food might be ambiguous e.g. a carrot could be savoury or sweet.

Peel (remove the outer covering or skin from (a fruit or vegetable):

• The new manager spent days peeling back years of red tape and unintelligible procedures to discover who really did what.

‘By and large’ is a common phrase to mean ‘on the whole; everything considered’.

Take on: [n.]: a particular version of or approach to something; therefore, approach is the better alternative.