GSLX-BAR-2026-001 · Signature
The Bar · Obsidian Series
Bourbon meets cacao.
The first of the Obsidian Series. Single-origin Kentucky bourbon, house cacao-nib bitters, burnt Muscovado, flamed orange. Stirred, not shaken.
Obsidian · Cacao
12-year Kentucky bourbon · house cacao-nib bitters · burnt Muscovado + Valrhona cacao syrup · single roasted cacao nib · flamed orange peel. The bittersweet flagship.
ABV34%
Dilution20%
Volume95ml
GlassRocks · DOF
Pour Cost£3.10
Sell£18.00
GSLX-BAR-2026-001 · HERO
12y bourbon · house cacao bitters · burnt Muscovado · flamed orange · cacao nib · 95ml
Stirred · 20 s
Single crystal cube
2 dashes · cacao nib
1 dash · Angostura
Orange oil · flamed
Cocoa rim · dusted
01
Provenance & Sourcing
BourbonMichter's 12-year single-barrel · Kentucky
CacaoValrhona Manjari 64% · Madagascar
Cacao BittersHouse-made · 4-week nib maceration in rye
AngosturaOriginal formula · House Bar
SugarMuscovado · Mauritius · burnt to syrup
OrangeAmalfi · same-day cut · oil-verified
IceClinebell block · hand-carved 5 cm cubes
Cocoa DustValrhona pure cocoa powder · sieved
02
Mise en Place
Six components. Bourbon, cacao syrup, bitters, orange, ice, cocoa dust. Everything visible before the pour.
MISE 01The bourbon
MISE 02Cacao syrup
MISE 03The bitters
MISE 04Finish set
03
Method — four moves
Chill. Build. Stir. Finish. The whole drink is in the stir.
01
METHOD 01Chill
02
METHOD 02Build
- Chill. Rocks glass into ice well 60 s. Mixing glass over cracked ice, chill 20 s, drain. Rim the rocks glass with a fine sieve of cocoa powder — one narrow band only.
- Build. Into the chilled mixing glass: 8 ml cacao syrup + burnt Muscovado, 2 dashes house cacao-nib bitters, 1 dash Angostura, 60 ml Michter's 12-year bourbon.
- Stir. Bar spoon, 20 seconds, 30 rotations. Target dilution 20%. Strain over the single hand-cut cube in the chilled rocks glass. The liquid should read deep mahogany with cacao ribbons.
- Express & garnish. Wide Amalfi orange peel · squeeze skin-side down over the glass at 8 cm · pass a lit match through the oil spray. Rim the glass with the peel, drop it in at 2 o'clock. Float a single roasted cacao nib on the ice. Pass.
04
Critical Control Points
| CCP | Standard | Verification |
|---|---|---|
| Ice quality | Clinebell single-cube · < 4% cloud | Visual · every pour |
| Bitters maceration | 4 weeks · sealed · 18 °C | Batch log · dated jars |
| Cacao syrup shelf | 7 days refrigerated · 2 °C | Bottle date · discard test |
| Orange peel age | Same-day cut only | Kitchen check · prep board |
| Cocoa dust hygiene | Sealed shaker · replaced weekly | Bar prep log |
05
Sub-Recipes & Components
Cacao-nib bittersGSLX-SUB-CB-006 · 4-week rye maceration
Cacao + Muscovado syrupGSLX-SUB-CS-007 · 2:1 · burnt sugar base
Cocoa rim mixGSLX-SUB-CR-008 · Valrhona + fine salt (10:1)
Roasted cacao nibsGSLX-SUB-CN-009 · House-roasted · 140 °C · 12 min
06
Classification
CategorySpirit-forward · stirred · bitter-sweet
FamilyOld-Fashioned · modern signature
SeriesObsidian Series · N°01 of X
ComplexityTier 2 · Bartender with cacao programme discipline
Serve Temp4 °C at pass
Menu PositionHouse signature · post-dessert or aperitif
07
Ingredients — Yield 1 cocktail
| Component | Measure | Standard / Allergen |
|---|---|---|
| Michter's 12-year Kentucky bourbon | 60 ml · 2 oz | Single-barrel · ABV 47.2% |
| Cacao + burnt Muscovado syrup | 8 ml · ¼ oz | Sub-recipe GSLX-SUB-CS-007 |
| House cacao-nib bitters | 2 dashes | Sub-recipe GSLX-SUB-CB-006 · Alcohol |
| Angostura aromatic bitters | 1 dash | Original formula · Sulphites |
| Amalfi orange peel · flamed | 1 wide swathe | Same-day cut · oil verified |
| Roasted Valrhona cacao nib | 1 whole | House-roasted · sub-recipe GSLX-SUB-CN-009 |
| Cocoa rim dust | Trace · one band | Sub-recipe GSLX-SUB-CR-008 |
| Ice · single hand-cut cube | 1 · 5 cm | Clinebell block |
08
Presentation & Service
GlassRocks · 240 ml · heavy crystal
IceSingle hand-cut 5 cm cube · never crushed
RimCocoa dust · one narrow band only · not full rim
GarnishFlamed Amalfi peel + 1 roasted cacao nib on ice
CoasterSlate · house-branded
Service NoteNever sip within 30 s · let the ice work · sip long
09
Pairing & Ordering
Pairs WithPassion Fruit Soufflé · sharp acid cuts the sweet
Also PairsDark chocolate petit-fours · cheese board (blue)
Course PositionPost-dessert · aperitif · digestif window
Batch SizeSolo · never pre-batched · always stirred fresh
Non-AlcoholicCacao-nib tisane + burnt sugar syrup + orange
Menu Language"The first of the Obsidian Series"
This is a chocolate drink that does not taste of chocolate — it tastes of the character cacao gives bourbon. Order it with something sweet OR with something salty, never with something bitter. Never with coffee — they fight.
10
Substitutions & Property Adaptations
| Original | Property / Reason | Substitution |
|---|---|---|
| Michter's 12-year | Warsaw / Manila · availability | Any bonded Kentucky bourbon 10y+ · Elijah Craig Barrel Proof |
| Valrhona Manjari | US properties · sourcing | Guittard 61% · single-origin Madagascar |
| Amalfi orange | Any · out of Amalfi season | Sicilian blood orange (winter) · never navel |
| House cacao bitters | New property · pre-programme | Bitterman's Xocolatl Mole bitters · until batch ready |
| Clinebell ice | Any · block machine down | Kold-Draft single cube · never bagged ice |
11
Training Notes & Common Failures
- ×Cloudy. Over-stirred OR ice not dense enough. 30 rotations is the ceiling. Clinebell ice only.
- ×Too sweet. Syrup dosed by eye. Always by jigger. 8 ml is the standard — 10 ml is a dessert.
- ×Weak cacao read. Bitters not shaken before dashing. Cacao-nib bitters settle — always agitate the bottle first.
- ×Cocoa rim messy. Full rim ≠ house style. One narrow band, applied with a fine sieve, opposite side to sipping point.
- ×Cacao nib sinks. Nib is under-roasted OR wet. House-roast for 12 min at 140 °C, cool fully, store in dry vessel.
12
Cost & Margin
| Line | Cost | Notes |
|---|---|---|
| Michter's 12y · 60 ml · £110/700ml (case) | £1.41 | Bar programme allocation |
| Cacao + Muscovado syrup · 8 ml | £0.28 | Batch cost pro-rata |
| House cacao bitters · 2 dashes | £0.35 | 4-week maceration cost amortised |
| Angostura · 1 dash | £0.02 | Amortised |
| Amalfi orange · 1 swathe | £0.28 | Pro-rata whole orange |
| Roasted cacao nib · 1 | £0.15 | Valrhona · house-roasted |
| Cocoa rim dust · 1 band | £0.05 | Amortised |
| Clinebell ice cube · 1 | £0.56 | Block amortisation + labour |
| Total cost/cover | £3.10 | 17.2% of sell |
| Sell price | £18.00 | Signature tier · Obsidian Series N°01 |
| Gross margin | 82.8% | Category-leading for signature bar-programme cocktail |
13
Allergens & Compliance
Alcohol · 34% ABV
Sulphites (bitters)
Trace: Soya (cacao processing)
Weights & Measures Act compliant · Full ingredient declaration on request · Under-18s: non-alcoholic version available
14
Version History
| Version | Date | Author | Change |
|---|---|---|---|
| v1.0 | 2026-08-19 | Edward Phillips Blanco | Initial signed release · Obsidian Series N°01 · Volume I MMXXVI |
GSLX-BAR-2026-001 · Recipe Codex™ · Volume I · MMXXVI
Signed · Edward Phillips Blanco · N° 001