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L'Horizon Food Identity independently reviewed
Food Identity How restaurants source, cook and care. Independently reviewed

L'Horizon

A family run gastronomic restaurant in the Walloon Brabant countryside, where tasting menus are built on named Belgian producers, Asian technique and a full vegetable omakase.

Allergies Not published, ask the kitchen ahead

Food Identity How restaurants source, cook and care. Independently reviewed

L'Horizon

A family run gastronomic restaurant in the Walloon Brabant countryside, where tasting menus are built on named Belgian producers, Asian technique and a full vegetable omakase.

The essentials, at a glance

Allergies Not published, ask the kitchen ahead

Documented practices
Independently
reviewed
Local sourcing
Seasonal cooking
Low waste
Plant-forward menu

Documented practices

Local sourcing 14 named local suppliers across categories
Seasonal cooking Seasonal vegetables, evolving menu per year
Low waste Fermentation, compostable plastic, filtered water
Plant-forward menu Vegetable omakase parallel, We're Smart rated

Style
Fine dining
Cuisine
Asian
French
Fusion
International
Italian
Good to know
Terrace
Bar
Wheelchair accessible
Dog-friendly
Recognised by
We're Smart Green Guide
Recognised by
We're Smart Green Guide·4 radishes

The delicious details

Alexandre Ciriello opened L'Horizon in 2017 in a villa surrounded by fields outside Chaumont-Gistoux. The kitchen works as a set of destinations, four to seven courses, setting technique gathered across Europe and Asia beside his family's Italian cooking.

His father Salvatore stands beside him as chef de cuisine and his mother runs the dining room. A sommelier builds both the wine pairings and a non alcoholic flight made on site.

About 80 percent of what the kitchen buys comes from local or neighbouring producers, each one named: Berugi for Belgian beef, Walter Dubois for seafood, Pascal Fauville for cheese. Herbs and aromatic flowers grow on the property, and koji and miso are made in house from off cuts. A vegetable omakase runs to the same length as the main menus.

Menu
What's on the table, and what's left off

Fixed tasting menus of four to seven courses, from 70 euros for a weekday lunch to 155 euros for dinner, each course identified on an illustrated map. A parallel vegetable omakase of five to seven courses runs the same length, wholly plant-based. Dishes name their components and build across European and Asian technique.

Menus are fixed and come in four lengths, from a four course weekday lunch at 70 euros to a seven course dinner at 155, each built as a run of destinations with an illustrated map set beside the plate.

Dishes name their parts rather than hide them: chawanmushi with langoustine, beetroot matured for six months with mushroom garum, turbot with asparagus and a yuzu beurre blanc.

A vegetable omakase runs alongside at five, six or seven courses, so a vegetarian table books the same length of meal as everyone else. Fermentation is handled in house, with koji and miso made from off cuts, and the drinks pairing can be built from non alcoholic preparations made on site.

Cuisine

Asian
French
Fusion
International
Italian

Dietary options

Vegetarian options
Impact score
How this restaurant rates
3 - Endorsed

The kitchen has built confirmed practice across four areas of responsible cooking.

Sourcing is the strongest of them. About 80 percent of what the kitchen buys comes from local or neighbouring producers, and the restaurant names them one by one: Berugi for Belgian beef, Walter Dubois for seafood, Pascal Fauville and the goat cheese makers Delphine and Raphaël, Stéphane Longlune for asparagus and strawberries, Chant d'Eole for Walloon sparkling wine. Menus change through the year, and herbs and aromatic flowers are grown on the property. On waste, 90 percent of the kitchen's plastic has been replaced with compostable alternatives, water is filtered on site rather than bought in bottles, and koji, miso and other fermentation carry the parts of an ingredient that would otherwise be thrown away.

Vegetables hold a place of their own on the carte: a vegetable omakase of five to seven courses sits beside the main menus, and the We're Smart Green Guide lists the restaurant at four radishes, its rating for kitchens that put fruit and vegetables at the centre of the cooking.

The impact dimensions

Local & direct sourcing

Seasonal cooking

Low waste & circular practices

Sustainable animal products✓

Plant-forward menu✓

14 named suppliers across meat, dairy, vegetables and fruit, totalling about 80 per cent of ingredients sourced locally or from neighbouring Belgium.

The restaurant names 14 producers by specific category: Berugi for Belgian beef, Walter Dubois for seafood, Pascal Fauville for cheese, Delphine and Raphaël for goat cheese, the Sablon family for eggs, cream and butter, Claessens for produce, Stéphane Longlune for asparagus and strawberries, Fils du Boulanger in Lasne for bread, Piétrebais for honey, Rudy Smolarek for spices and Chant d'Eole for Walloon sparkling wine.

The restaurant states that 80 per cent of its ingredients come from local or neighbouring producers. A 2019 independent review corroborates the practice, naming Jardins de Dounia, Ferme de Longueville and goat cheese from Chaumont-Gistoux itself as suppliers.

Strongest sourceRestaurant submission

Seasonal vegetables shape the omakase course by course; the main menus change through the year with asparagus, wild garlic and first produce.

The restaurant grows its own aromatic herbs and edible flowers on the property and states that seasonal produce shapes the vegetable omakase as a sequence the guest follows through the year. Seasonal suppliers include Stéphane Longlune for asparagus and strawberries.

Independent reviews corroborate the practice. Gault&Millau describes turbot with asparagus and yuzu beurre blanc, and the April 2025 La Libre review cites wild garlic and first asparagus on the menu.

Strongest sourceRestaurant submission

Kitchen ferments koji and miso from off-cuts; 90 per cent of plastic replaced with compostable alternatives; water filtered on-site, not bought in bottles.

The kitchen works the less noble parts of its ingredients through fermentation: koji and miso are made in-house from off-cuts. On packaging, 90 per cent of the restaurant's single-use plastic has been replaced with compostable alternatives, and reusable glassware and cutlery are available on request. On water, the restaurant filters water on site rather than buying it in bottles.

Strongest sourceRestaurant submission

Named suppliers for meat, seafood and dairy without published welfare credentials; A5 wagyu and oscietra caviar on current menus; foie gras status unclear.

The restaurant names suppliers across meat and seafood: Berugi for Belgian beef, Walter Dubois for seafood, Pascal Fauville for cheese, Delphine and Raphaël for goat cheese, and BigH for smoked trout. The Sablon family supply eggs, cream and butter. However, no welfare standard, MSC, ASC, Beter Leven or organic credential is evidenced for any category.

The current menus feature luxury commodities without sustainability qualification: A5 wagyu grilled over binchotan and oscietra caviar are documented on recent tastings. Foie gras appeared in an independent 2019 review but is not visible on current published pages, so its present status requires confirmation.

Strongest sourceGault&Millau ↗

Vegetable omakase of five to seven courses sits alongside main menus; the We're Smart Green Guide lists four radishes for plant-centred practice.

The restaurant runs a dedicated vegetable omakase at five, six or seven courses (100, 115 and 130 euros) alongside its main menus of the same length. The We're Smart Green Guide lists L'Horizon at four radishes and describes a pure plant menu with vegetables sourced from a neighbouring farmer. The restaurant was nominated Discovery of the Year 2025, recognising vegetables at the heart of the cooking.

The main menus remain animal-protein led, with langoustine, A5 wagyu, king crab, turbot, duck and lamb forming the structural centre of most courses. This balance reflects level 3: a meaningful plant presence on a mixed menu with plant-forward intent clearly acknowledged.

Strongest sourceWe're Smart Green Guide ↗

Sourcing signals

✓
Direct named-farm sourcing
✓
In-house preparation
✓
Low-impact beverage program

The restaurant names 14 individual producers against product categories, covering meat, seafood, dairy, vegetables, herbs, bread, spices and beverages. An independent 2019 review corroborates the practice, citing Jardins de Dounia, Ferme de Longueville and goat cheese from Chaumont-Gistoux.

Koji and miso are fermented in-house from off-cuts, and a non-alcoholic beverage pairing of house-prepared drinks is offered alongside each menu. An independent review describes a water and food pairing built from infusions prepared on site.

Wine comes from Chant d'Eole in Hainaut and apple juice from Verger de la Chise, both Belgian and under 750 km away. Water is filtered on-site and a dedicated sommelier builds non-alcoholic pairings from house preparations.

Visit & practical info
Address, price, and more
Address
Rue du Moulin 50, 1325 Chaumont-Gistoux, Chaumont-Gistoux, Belgium
Open in Google Maps ↗
Price
€€€€
Format
Fixed tasting menus, book in advance
Hours
MondayClosed
TuesdayClosed
WednesdayClosed
Thursday19:00–00:00
Friday12:00–16:00, 19:00–00:00
Saturday19:00–00:00
Sunday12:00–16:00, 19:00–00:00
Not captured during screening; Google Places is the sole source for this block and it is populated by the server-side backfill.
Style
Fine dining
Good to know
Terrace
Bar
Wheelchair accessible
Dog-friendly
Web
restaurantlhorizon.be
Reviewed by My Treats
Last reviewed 7 Oct 2026
Reserve To website
Link copied
How we score
The My Treats impact scale

Every restaurant is assessed against SEERO, our six-dimension sustainability framework — covering sourcing, seasonality, waste, animal products, social impact, and plant-forward cooking. Each finding is weighted by how strongly it is corroborated. The combined result is translated into an impact score from 1 to 5.

The five levels

SEERO is an acronym for Starting, Engaged, Endorsed, Recognised, Outstanding:

Starting First verified signals of sustainable practice.
Engaged Credible practice across two dimensions.
Endorsed Meaningful practice across three or more dimensions.
This place
Recognised Strong practice across four or more dimensions, with independent corroboration.
Outstanding Top-tier practice, confirmed by recognised third-party audit.

How a level is reached. Each level needs two things together: a minimum number of dimensions covered, and a minimum overall strength of evidence across them. A dimension only counts once its evidence is specific and substantiated — a passing mention doesn't qualify. Meeting only one of the two keeps a restaurant a level lower.

Scores of four or five require human validation and, at the top tier, an external audit. Scores are based on publicly available evidence and restaurant submissions at the time of assessment.

Full methodology→
Impact dimension
—
How this dimension works
—
How evidence is weighted
Self-declared Stated by the restaurant on its website, menu or in a submission. Plausible, but not yet independently corroborated.
Researched Found through independent research; one credible third-party source backs the claim.
Vouched Corroborated across more than one independent source. Some gaps may remain.
Audited Fully corroborated across independent sources or by a recognised third-party certification.
What the sourcing checkmarks mean
✓ Full check — independently verified: corroborated across more than one source, or audited / third-party certified (vouched or audited).
✓ Light check — self-declared or from a single source. Not yet independently verified.
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