RECIPES ⬇️ Santiago Lastra's Mexican Soul #mexicanfood #chef #recipe #cookbook #cooking#food #shorts
21 September 2026 · 1:11 watch
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Learn how Kol chef-patron Santiago Lastra adapts authentic Mexican techniques using seasonal British ingredients, from potato masa tortillas to artisan queso Oaxaca.
Key takeaways
- Integrate local starches like potato into masa to improve pliability and hold moisture in fresh tortillas.
- Incorporate house-made stretched-curd cheeses like queso Oaxaca to secure a reliable, fresh supply for hot service.
- Control moisture levels on tostadas by dry-curing seafood and sealing the tostada base to prevent sogginess.
- Select high-density bread for drowned dishes like torta ahogada to ensure structural integrity on the pass.
Local Sourcing, Authentic Soul\n\nFor British chefs, sourcing hyper-local Mexican ingredients like fresh cactus leaves or specific heritage corn varieties can be a logistical headache. In Mexican Soul, chef-patron Santiago Lastra of London's Kol and Fonda offers a masterclass in adaptation. The core takeaway for a professional kitchen is how to preserve the true soul of Mexican food while utilizing the local, seasonal bounty of the UK. This approach isn't about cutting corners; it is about understanding the fundamental properties of Mexican staples and finding domestic equivalents that deliver the exact same texture, acidity, and heat.\n\n## Mastering Potato Masa and Artisanal Cheese\n\nOne of the primary techniques featured in the book is the creation of potato masa tortillas. Traditional nixtamalisation is a precise art, but integrating potato into the dough introduces moisture and starch that can make hand-pressed tortillas more forgiving to work with in a high-volume service. This adaptation helps maintain a pliable texture without relying on imported shelf-stable alternatives.\n\nFor the larder section, Lastra also shares the mechanics behind making queso Oaxaca from scratch. This stretched-curd cheese requires careful temperature control during the acidifying and stretching phases to achieve its signature stringy texture. Mastering this in-house allows chefs to bypass difficult import lines, ensuring a fresher product for melting into dishes like choriqueso.\n\n## Balancing Acid and Seafood on the Line\n\nLastra’s menu structures, such as trout tostadas and crab burritos, demonstrate how to balance fat and acidity using local cold-water seafood. The pitfall with raw or lightly cured seafood tostadas is moisture control. A soggy tostada base ruins the dish instantly, so chefs must focus on sealing the tostada and dry-curing or precisely draining the seafood before assembly. Similarly, his take on the classic Jalisco street food, torta ahogada (drowned sandwich), highlights the necessity of structured bread that can withstand a rich, spiced tomato and chilli broth without disintegrating on the pass. By focusing on these structural and chemical principles rather than rigid ingredient sourcing, chefs can build a vibrant, sustainable Mexican-inspired menu anywhere.
Questions from the pass
Frequently asked questions
How does adding potato to masa affect the tortilla's texture?
Adding potato to masa dough increases moisture retention and starch levels, making the tortillas more pliable and resistant to tearing. This technique is especially useful in professional kitchens where tortillas must be held warm or pressed quickly during busy services without drying out.
What is the main challenge when making queso Oaxaca in-house?
The primary challenge is managing temperature and acidity during the curd-stretching phase. If the curds are too cold or the pH is off, the cheese will not stretch into the signature long, fibrous ribbons required for a traditional Oaxaca cheese.
How do you prevent tostadas from becoming soggy during service?
To prevent soggy tostadas, ensure all seafood toppings are thoroughly drained or dry-cured before assembly. Additionally, lightly brushing the fried tortilla base with a thin layer of fat or oil-based emulsion can create a moisture barrier that extends its crispness on the pass.
Why is bread selection critical for a torta ahogada?
Bread selection is critical because the sandwich is completely submerged in hot tomato-chilli sauce. A soft, airy roll will disintegrate immediately, so you must use a dense, crusty sourdough or birote-style bread that can absorb the sauce while maintaining its structural shape.
Original video by Great British Chefs. This overview is written independently by The Chef's Circle editorial desk — watch the original on YouTube.
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