What to do when you use Text-to-Speech for captions, but have to spell a word phonetically?

I'm working on a piece for a nursing simuation program.  One aspect of doing simulations is "moulage" - for pronunciation, please see https://www.howtopronounce.com/moulage.

I am using text to speech to narrate the slides, partially for caption generation.  Here's the problem.  To get the narration correct, I have to spell "moulage" phonetically (a challenge I haven't completely met yet) which messes up the captions.

I hope that I'm missing an easy fix here.  Does anyone have ideas on what I can do to resolve this issue?

Thanks,

Judith Reymond