‘Minestrone’ is not pronounced ‘Min Ess Throw Neigh’. It rhymes with stone and is simply ‘Mine Strone’.
Elsewhere an egg may be boiled, hereabouts it becomes a ‘baldy egg’
I am sure that there are a few more that will only come to mind after I hit the ‘post’ button.
‘Launderette’ is pronounced as ‘Lawn Der Et eeee’ as if to rhyme with the former Chelsea goalkeeper, Peter Bonetti.
Maybe it is because of this word play, but I have never had difficulty with the spelling of these words.
But if ‘Launderette’ is to be misspelled, I would have thought ‘Launderet’ was more probable than ‘Launderett’, but I was wrong.