Sustainability in the kitchen isn’t just about what we cook: it’s about how we cook, source and preserve our food. From reducing waste to embracing seasonality, small shifts in our habits can have a profound impact on both the environment and the way we experience food. But where do you start?

Learning from the best is often a good approach, and that’s exactly what MasterClass offers: an opportunity to gain insight from world-renowned chefs and culinary pioneers who are redefining what it means to cook sustainably.

We spoke to three such chefs – Massimo Bottura, Dominique Crenn and Alice Waters – to find out more about their cookery styles and MasterClass courses.

Massimo Bottura, the chef behind three-Michelin-starred restaurant Osteria Francescana, is a champion of zero-waste cooking. He believes that every ingredient has potential, especially the ones we tend to discard.

“In our Osteria Francescana, we don’t waste anything. And if we can do it, you can do it at home,” says Bottura. “This is a cultural thing. The culture of not wasting anything.”

The chef’s MasterClass course on modern Italian cooking showcases his innovative approach, from transforming dry bread into rich pasta dishes to using potato skins for caramelised broths. He sees leftovers not as scraps, but as inspiration.

“This is how we must cook: with awareness, with intention and with the belief that every ingredient has value. Sustainability is not a trend; it is the base of culinary tradition. It’s the way our grandmothers cooked, turning every scrap into something delicious,” says Bottura.

Chef Dominique Crenn takes sustainability a step further, turning vegetarian dishes into statements of both artistry and environmental responsibility.

“Maybe I do things differently, but I do things because I want change to happen. I’m here to just bring back what matters and bring that beautiful gift that we’ve been given from Earth and cook it and make it delicious, so people understand the need for and the importance of vegetables,” says Crenn.

Crenn’s MasterClass course explores the principles of seasonal cooking and how to minimise waste while creating refined, flavourful dishes. She urges home cooks to pick ingredients when they’re at their best: “Seasonal is very important when you follow a recipe. Just choose your product at the time it is at its peak.”

Chef Alice Waters, a pioneer of the farm-to-table movement, emphasises the importance of knowing where food comes from: “I urge you to find a farmer’s market where you live. But if you shop at a grocery store, you can apply the same principles (by checking product labels).”

Waters’ MasterClass course is all about home cooking. She invites students into her kitchen, offering guidance on choosing seasonal ingredients and preparing simple, nourishing meals.

“Like I do at home, we write a daily menu that is based on what’s the very best that particular day. And we prepare the dishes simply so that they taste of what they truly are,” she explains.

These courses offer more than just recipes: they provide a mindset, one that encourages creativity, respect for ingredients and a deeper connection to the food we eat.