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I left my original iPad Pro 11” charger and cable in the box and bought this at Christmas https://www.amazon.co.uk/gp/product/B07HQDRXNR/ref=ppx_yo_dt_b_asin_title_o03__o00_s00?ie=UTF8&psc=1

Not exactly cheap, but it allows super fast charging for my iPad and iPhone at the same time and even more if it’s just the iPad being charged. It works great so far. It comes with a decent length USB-C cable and I bought an Apple USB-C to lightning cable for the iPhone.

In addition to a UK plug, it also comes supplied with a couple of adapters for use in Europe and the US although I’ve not used these yet.
 
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