The imagined British response to a Luftwaffe base in the Canaries

How would the Royal Navy respond to the proposed Luftwaffe base in the Canary Islands?

Britain is expected to take the base before Germany could use it, without a detailed operation or access scenario being developed.

A German-built base in the Canary Islands is imagined becoming a British capture opportunity. The joke is that Germany might build the facility without getting to use it. Minorca supplies an analogy with earlier British Mediterranean basing before Malta. No campaign plan or explanation of German access to the islands is offered.