Green Goodness

 & Test-Kitchen

"A Space to Be Creative" Chef Sergio.

In recent years, at Gem42 we have established a dedicated test kitchen  in which to create freelywithout the pressures of a normal, working kitchen — and create our restaurants new dishes, ideas, and techniques. Some of these projects delve into scientific, technological, and academic research  while others stick to developing menus and working on food & Fermentation.


      Supply Us

We are always on the hunt for new Local Quality produce/ingredients/suppliers. If you feel you have something of interest please don’t hesitate to contact us on the kitchen number 01633 287591.




At Gem42 Test Kitchen,           We focus on investigating "forgotten ingredients" and emphasizing a natural, & more healthy way of eating. 


Our Gem42 Test Kitcken,  works alongside out greenhouse team, we have recently researched on wasabi and and finger lime, its gastronomic use and health benefits , and how it's produced, now our greenhouse team has its own plants.


Chefs thought; "We have also an opportunity to study things we use all the time and take for granted," they said.


Plancton Marino  

Chef Sergio is pushing the boundaries in the culinary world, enhancing recipes by adding the ‘authentic flavour of the sea.

’Science and cuisine combine to enhance the taste of the sea in more Traditional recipes but also in the most Innovative.

The sea in the pot.



A real revolution in Gem 42 Lab kitchen. An exclusive Ingredient  with an intense taste of the sea that offers Innumerable possibilities in the kitchen.

The plankton marino It lends itself to an infinite variety of preparations and innovative applications that bring the gourmet kitchen sensory experience well ahead. 


          Health Benefits             Of Plancton Marino 

Plancton marino is full of nutritional benefits, including; omega 3 and 6 fatty acids, iron, calcium, phosphorous, iodine, magnesium/potassium. Most notably it is high in antioxidants that help repair cell damage. The plancton marino is also vegan with no seafood allergens (including shellfish)

Dry Italian pepper called peperone crusc

Peperoni Cruschi  

Peperone di Senise:

the sweet peppers of Basilicata

Every August long strings of peppers line the streets of Senise, South of Italy drying in the late summer sun. This Bell Pepper is a very high quality product called the "red gold of Basilicata"a spice powder or in the "Crusco"version - which means Crunchy. At gem42  you can enjoy it, in some of our tasting menu dishes.

Healthy Benefits


In addition to their culinary versatility, the Bell Peppers from Senise have also excellent nutritional properties: they contain vitamins A, E, K and PP, and a 30% of vitamin C more than other varieties of Bell Peppers.They’re not only delicious, but also a very genuine & healthy product.


"The Red Gold of Basilicata"

Do you want to discover more about this Pepper ?

From the Antilles,the Spanish imported it between the 16th and 17th century,the plantation developed in Senise and in the neighboring villages with care and respect for tradition, until obtaining the IGP certification  by the European Union in 1996.Since then, the areas is officially recognised as a place with unique climate conditions for the production of this particular variety of Bell Pepper.But how the Senise Pepper become "Crusco"

At Gem 42, the dried Bell Pepper is cleaned with a rag and dripped in boiling olive oil, just a few seconds are enough to get the unmistakable consistency of puffy and "Crunchy".If you look at it ,the Bell Pepper could remind you the spicy taste of the chilly pepper, but actually, it is just the opposite when you try it, it will seduce you with its sweet and intense flavour which, combined with the crunchiness gives you an ultimate bite sensation.



We are so excited to announce our new Grow Greenhouse Project! Located just a few miles from our Gem42 Kitchen we are growing our own fruits and vegetables from seed using organic practices!

Home Grown Vegetables


Our restaurant greenhouse allows us to take growing into our own hands, year round.  It provides a buer against the uncertainties of sourcing local seasonal fare. It gives us more control over our menu, & gives us a consistent production of greens and vegetables that our kitchen always needs.

Tomatoes in Greenhouse

"My Vegetable Patch is my Pride & Joy"

Chef Sergio


A  tomato maybe a fruit , but it is a singular fruit. A savoury fruit. a fruit that has ambitions far beyond the ambitions of other fruits.


Pickled and Infused in Dawi Sant Citrus Welsh Gin  

Sweet & Sour Peaches

The small peach fruits are picked up still green, just at the moment of the first thinning, when they measure one or two cm. and the stone has not hardened yet. After an accurate washing, the fruit are cooked in water and vinegar, then at gem42 they are spiced together with Welsh Gin and preserved in glass jars. They have a strong taste, unique and with crisp stiffness.
Our speciality peaches , are served as palate cleanser between selected courses.   Only recently this old recipe has come out of the family use and it has had a great notority.

Plum Cake


bara lafwr or bara lawr

A Traditional Welsh Delicacy 

 A traditional Welsh ingredient  that has little to do with bread itself. 

To make laverbread, the  Laver Seaweed is boiled for several hours,

then minced or pureed.

Laverbread is a most versatile ingredient in modern cooking.The mineral savour complements freshest produce and eclectic ingredients, its dramatic appearance can be used to great effect.

At Gem 42 is slow cooked for 6 hours, then is combined lemon juice, olive oil, Urfa biber, and dehydrated at 70c for 48hours at this stage the Laverbread will be completely dry and ready to be grind into fine powder, used for our

Pomme-souffle which is dusted with Laverbread ,filled with foamed lobster bisque ,lobster, puree of smoked heel and Beluga caviar.(fish and chips at its best).









In a nutshell, kombucha is fermented tea. The traditional method of making kombucha – which we follow  involves a natural fermentation of sweet tea, wild healthy bacteria and yeasts.

The result is a tasty drink with sweet and sour flavours that contains healthy, living cultures (aka good bacteria) and organic acids.






Wine is alcoholic, and naturally so. But if you want a great non-alcoholic alternative to your favourite champagne or Prosecco our Homemade Kombucha is the perfect drink.

Here At Gem42 is also available alongside our tasting menus as an alternative to pairing.


  Health Benefits Of Kombucha 

As kombucha is the product of fermentation, a number of probiotic bacteria are produced. At specific concentrations, probiotic bacteria can help to balance the gut microbiome in humans and improve digestion.


Komboucha is also high in antioxidants.


Kombucha contains vitamins and minerals which are produced when the yeast breaks down the sugars, including vitamin C and B vitamins B1, B6 and B12.


 kombucha is claimed to be beneficial for several ailments relating to digestion, weight loss, bone health and inflammation.

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At Gem 42 we put a particular emphasis on procedures that respect the environment and the animal welfare. 

The  foie gras that we source is:

Ethical - Without force-feeding (gavage), cruelty-free with a huge focus on animal welfare.

Organic - The Geese feed on acorns and grains that are free from pesticides, synthetic fertilisers and GMO’s.

Sustainable - The farm estate where the geese are reared is sustainably managed, protecting the ecosystem and its biodiversity.

Natural - The animal's natural seasonal cycle means it instinctively accumulates fat during the winter months in preparation for its migration period.


Ethical Foie Gras 

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Our Ethical Foie Gras is obtained    without gavage (forced feeding). 

 A seasonal foie gras obtained in winter         thanks to the migration instinct of wild        

geese, raised in total freedom that has        a diet of seeds, natural grass and acorns.

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pane .HEIC



Crusty, Artisanal Sourdough To Carve At The Table.

bread takes time… and patience, and finesse. 

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Fresh Bread
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 Our bread is born of traditional methods and the fewest, simplest ingredients. We don’t use anything artificial. No dodgy extras to synthetically boost shelf life or softness. Instead, we choose the very best natural ingredients, and invest the time and discipline needed to create real, honest Bread Varieties and Hand  Pulled Grissini,  that look, smell and taste amazing.

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Marble Surface
Marble Surface

Grissini Stirati or

Hand-Pulled Breadsticks

A Perfect Companion with our           Bottarga Emulsion.

Corn Flour | Powdered Crusco Pepper. 

Wholemeal Flour | Seeds | Liquirice.

A quintessential food experience @Gem 42

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Mason jars


A Space to be Creative

Our Product Lab &Test kitchen also involves.... Development | Testing |Sowing Rare Seeds | Veg Growing | Green House Gardening | Fermenting | Cooking | Chilling | Churning | Chopping | Charring |Brining and Much more.

Farm 2 Table

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Product- Lab


  Pre-dessert a Journey with

a sweet surprise