Hoi An felt different almost immediately. After the pace and heat of Saigon, the central region had a softer rhythm. The town is famous for its old streets, trading history and mix of influences. For centuries it was an important port, with Chinese, Japanese, Vietnamese and later European connections all leaving traces in the buildings, food and craft.

You feel that mix as you move through the town. It is not one single influence. It is layers. Old shopfronts, tiled roofs, timber houses, markets, bridges, cafés and bakeries. Hoi An is beautiful, but what made it matter to us was not just how it looked. It was the care in the details.

That became the theme of the day. Small things that change how something feels. A craftsperson behind a lantern. A pâté inside a sandwich. A city that shows you how much difference one careful detail can make.

One of the loveliest parts of the day was seeing Tony again, the person behind the handmade lanterns in our venues. It was good to catch up and see the people behind those pieces in person.

Those lanterns are not just decoration to us. They are part of the way HOP keeps its connection to Vietnam visible. Guests might not always know where they come from or who made them, but those details shape the feeling of the restaurants. They give warmth, colour and a little of the street-market atmosphere that first inspired us.

Being in Hoi An reminded us how many links to Vietnam run through HOP. Not just food links, but human ones. People we have met. Suppliers we have worked with. Places we have gone back to. It is easy to forget how many small stories sit behind what a guest sees in a restaurant. This trip brought those stories closer again.

Then came the banh mi. Earlier in the trip, in Saigon, I had said I thought Saigon had the best banh mi. Hoi An made me eat my words.

The bread was crisp and light. The build was careful. The whole thing felt balanced. But the detail that really stood out was the pâté. Rich, savoury, smooth and full of depth. It changed the sandwich without making it heavy.

That is the magic of a great banh mi. It has to hold contrast. Crisp bread, richness, pickles, herbs, chilli, fresh cucumber, savoury sauce. Too much of one thing and the whole sandwich falls out of balance. Get it right, and it becomes one of the world’s great eating moments.

Banh mi carries a complicated history. The baguette and pâté came through French colonial influence, but Vietnam turned them into something completely new. The Vietnamese version is lighter, brighter and more herb-led than the sandwich that inspired it. It is not French food. It is Vietnam taking an influence and making it its own.

That matters when we think about HOP. The point is never to flatten the story or pretend these dishes appeared from nowhere. The history is part of the food. So is the way Vietnamese cooks adapted, improved and transformed it.

In Hoi An, that felt very clear. The sandwich was not trying to be complicated. It was just built properly. Every element had a job. That became a big lesson for us.

Back home, that one bite pushed us to look again at our own banh mi. Not to reinvent it for the sake of it, but to respect the details more. Better butter. Proper chicken-liver pâté. Cucumber back in. Sharper pickles. More herbs. A house Viet jus to bring it together.

That is exactly what Diary to Dish means. We find the moment. We understand why it mattered. Then we work out what it should mean for HOP. The Hoi An banh mi became one of the clearest examples of that.

Day four was a reminder that the smallest details are often the ones people feel most. The light from a lantern. The richness of a pâté. The crunch of bread. The care behind the thing you thought you already knew.

Hoi An’s old town is famous because it holds so many layers in one small place. For centuries, merchants from different parts of Asia and Europe passed through its port. Chinese assembly halls, Japanese influence, Vietnamese homes and French touches all sit close together. The result is a town where detail feels important: colour, craft, woodwork, lanterns, tiles, shutters and food.

That sense of detail makes its way into the eating too. Hoi An is not only known for banh mi. It is known for dishes that feel very tied to place, like Cao Lau, and for food that rewards attention. The best things we ate there were not loud. They were balanced and careful.

That helped us think about our own menu in a more specific way. The goal was not to make everything bigger or heavier. Sometimes improvement is about putting the right thing back in. A better butter. A proper pâté. Cucumber for freshness. Herbs for lift. The lesson from Hoi An was simple: care shows.

The same thinking now runs through the way we talk about our food. A menu item should not just list ingredients. It should help guests understand why those ingredients are there. Hoi An gave us the clearest example of that: when the details are right, people can feel the story even before they know it.

It also made us more confident in talking about improvement as a return to the right details. The best changes are not always the most dramatic ones. Sometimes they are the ones guests feel immediately without needing to be told.

Watch Day 4 of The Vietnam Diaries to see Hoi An, Tony and the banh mi that reshaped our thinking.

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