First, let's define the target properly — because "gourmet" on yachts isn't what most people think.
When I started my first boat I tried doing all the crazy molecular stuff. It just wasn't me — and honestly, it's rarely what guests want. What they want is amazing ingredients, treated with respect, plated beautifully, without too much fuss. My style settled into exactly that: incredible produce, my own spin, a lot of Asian influence. The future belongs to ingredient-led cooking, not foams for the sake of foams.
So your goal isn't to become a molecular wizard. It's to cook beautiful, confident, consistent food across many cuisines. That's learnable.
If you can, spend time in a quality restaurant, even one season. My apprenticeship split between a refined fine-dining kitchen and a high-volume quality kitchen, and that combination — finesse plus output — is exactly the yacht chef skillset. If a formal role isn't possible, stage: many good kitchens will take a hard worker for free nights, and you'll absorb plating, seasoning discipline and standards fast.
Yacht cooking is breadth: beautiful breakfasts, fresh salads and ceviches, handmade pasta, precise fish and meat cookery, bread and pastry basics, canapés, desserts, and at least a working fluency in Japanese, Thai, Italian, Middle Eastern and Mexican flavours. Cook through cuisines systematically at home — guests order from their memories of the world, and your job is to meet them there.
Plating is a language you learn by immersion. Study the restaurants you admire, eat out as education whenever you travel, photograph your own plates and critique them honestly next to the pros. I document everything I cook — the camera makes you honest and shows you your progress.
Seasoning, sauces, temperature control, bread. Guests won't notice your tuile; they will absolutely notice underseasoned fish and bought bread. Boring excellence beats exciting inconsistency in a galley, every single time.
Skip the molecular kit. Buy better fish. That's the whole secret, cheaper than culinary school.