GSLX CODEX / Recipes / Bar / Obsidian · Cacao
EP
GSLX-BAR-2026-001 · SIGNATURE · OBSIDIAN SERIES · N°01
Bar · Spirit-Forward Bitter · Chocolate Programme
v1.0 · FINAL
Issued · 19 August 2026

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.

Authored · Edward Phillips Blanco, FIH CMC Signed · Obsidian Series · MMXXVI
ABV34%
Dilution20%
Volume95ml
GlassRocks · DOF
Pour Cost£3.10
Sell£18.00
Obsidian Cacao — mahogany bourbon with cacao ribbons, flamed orange, cocoa rim, on walnut bar — hero shot
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.

03

Method — four moves

Chill. Build. Stir. Finish. The whole drink is in the stir.

  1. 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.
  2. 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.
  3. 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.
  4. 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 qualityClinebell single-cube · < 4% cloudVisual · every pour
Bitters maceration4 weeks · sealed · 18 °CBatch log · dated jars
Cacao syrup shelf7 days refrigerated · 2 °CBottle date · discard test
Orange peel ageSame-day cut onlyKitchen check · prep board
Cocoa dust hygieneSealed shaker · replaced weeklyBar 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 bourbon60 ml · 2 ozSingle-barrel · ABV 47.2%
Cacao + burnt Muscovado syrup8 ml · ¼ ozSub-recipe GSLX-SUB-CS-007
House cacao-nib bitters2 dashesSub-recipe GSLX-SUB-CB-006 · Alcohol
Angostura aromatic bitters1 dashOriginal formula · Sulphites
Amalfi orange peel · flamed1 wide swatheSame-day cut · oil verified
Roasted Valrhona cacao nib1 wholeHouse-roasted · sub-recipe GSLX-SUB-CN-009
Cocoa rim dustTrace · one bandSub-recipe GSLX-SUB-CR-008
Ice · single hand-cut cube1 · 5 cmClinebell 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-yearWarsaw / Manila · availabilityAny bonded Kentucky bourbon 10y+ · Elijah Craig Barrel Proof
Valrhona ManjariUS properties · sourcingGuittard 61% · single-origin Madagascar
Amalfi orangeAny · out of Amalfi seasonSicilian blood orange (winter) · never navel
House cacao bittersNew property · pre-programmeBitterman's Xocolatl Mole bitters · until batch ready
Clinebell iceAny · block machine downKold-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)£1.41Bar programme allocation
Cacao + Muscovado syrup · 8 ml£0.28Batch cost pro-rata
House cacao bitters · 2 dashes£0.354-week maceration cost amortised
Angostura · 1 dash£0.02Amortised
Amalfi orange · 1 swathe£0.28Pro-rata whole orange
Roasted cacao nib · 1£0.15Valrhona · house-roasted
Cocoa rim dust · 1 band£0.05Amortised
Clinebell ice cube · 1£0.56Block 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
v1.02026-08-19Edward Phillips BlancoInitial signed release · Obsidian Series N°01 · Volume I MMXXVI
GSLX-BAR-2026-001 · Recipe Codex™ · Volume I · MMXXVI
Signed · Edward Phillips Blanco · N° 001