Bartending Academy · Production formula

Old Fashioned

Rich, aromatic, spirit-forward

Production identity

Category: classic cocktail · Style: Spirit-Forward · Yield: 1 service · Portion: 1 drink

Glass / vessel: House-appropriate glassware · Ice: As specified by service method · Garnish: As required by house spec

Formula — 1× target batch

IngredientHouse measureMetric / control
Bourbon or rye whiskey2 oz59.1 mL
Rich simple syrup0.25 oz7.4 mL
Aromatic bitters2 dashCount/house-calibrated unit; do not invent a liquid mL conversion

Scaling table

Scaling is arithmetic, not permission to ignore service behavior. Verify the 1× formula first, then make a controlled intermediate batch before a 50× event batch.

ScaleCalculated ingredients
2 oz / 59.1 mL Bourbon or rye whiskey · 0.25 oz / 7.4 mL Rich simple syrup · 2 dash Aromatic bitters
10×20 oz / 591.5 mL Bourbon or rye whiskey · 2.5 oz / 73.9 mL Rich simple syrup · 20 dash Aromatic bitters
50×100 oz / 2957.3 mL Bourbon or rye whiskey · 12.5 oz / 369.7 mL Rich simple syrup · 100 dash Aromatic bitters

Method

  1. Fill a rocks glass with the specified ice.
  2. Add the ingredients in the listed order.
  3. Stir briefly, garnish, and serve.

Working numbers

Measured pre-dilution liquid represented in ounce-based ingredients: 2.25 oz where applicable. Dilution control: Training target: establish approximately 20–25% added-water dilution by starting liquid volume, then calibrate to house ice, starting temperature and glass temperature by weighing or volume-checking a controlled sample.

Storage: Single-service formula. Prepare to order unless the Academy batch version explicitly authorizes advance production. Shelf-life rule: Not a holding specification. Perishable ingredients follow the venue’s approved date/time and food-safety procedure; discard any component that is out of standard.

Labeling: For single service, use the current controlled house recipe. For any batch, label identity, version, production date/time, responsible person and the approved discard/review point.

Critical controls

  • Measure each ingredient with the specified tool; do not free-pour during calibration.
  • Control ingredient and vessel temperature before changing dilution.
  • Taste the finished drink at service condition, not the warm undiluted mix.
  • Use only the written substitution path; product changes can alter sugar, ABV, bitterness and final balance.

Production verification

Make the formula exactly as written before adjusting it. Record actual packaged or finished yield, starting ingredient temperature where it materially affects the result, and the service portion. Compare the finished sample against the sensory target: Rich, aromatic, spirit-forward. If the formula includes Bourbon or rye whiskey, Rich simple syrup, Aromatic bitters, verify that each product is the intended house specification; a substitution can change sugar, acidity, bitterness, aroma, alcohol strength or texture.

Sensory standard

The target is Rich, aromatic, spirit-forward. Evaluate the beverage at its intended serving temperature and dilution. The standard should be descriptive enough that two trained bartenders can compare results and identify which axis—sweetness, acidity, bitterness, alcohol, aroma, body, carbonation, temperature or dilution—is outside the house target.

Supporting professional reading

From the Keep ’Em Coming Back books

Behind the Bar

This page is a practical extension of Volume 4. The book explains the reasoning; this resource helps put it to work.

Whiskey · Spirit-Forward

Old Fashioned is a rich, aromatic, spirit-forward spirit-forward recipe. Use this page as a working specification, then test the exact brands, ice, glass, price, and service conditions before adopting it as a house drink.

Single-serve spec

• 2 oz (60 ml) Bourbon or rye whiskey

• 0.25 oz (7.5 ml) Rich simple syrup

• 2 dash Aromatic bitters

Method

• Fill a rocks glass with the specified ice.

• Add the ingredients in the listed order.

• Stir briefly, garnish, and serve.

Shared testing and documentation controls: Bar recipe operating standard →

Recipe-specific working guide

How Old Fashioned works in a real bar

Old Fashioned is a rich, aromatic, spirit-forward spirit-forward built around whiskey. This rewrite treats the listed specification as a working service standard: every measure, preparation choice, product, temperature, and finishing step must be tested together before the venue adopts it.

Ingredient functions

• 2 oz Bourbon or rye whiskey supplies the drink’s principal structure and most of its alcoholic weight. Keep the approved bottle and measured pour consistent because proof, oak, smoke, botanical intensity, or raw-material character can change the balance even when the ounce count stays the same.

• 0.25 oz Rich simple syrup is the sweetness control. Its job is not to make the drink simply sweet, but to connect the base, acid, bitterness, and dilution into one finished shape.

• 2 dash Aromatic bitters is a concentrated seasoning control. Keep the dispenser consistent and taste the finished build before increasing it, because small changes can dominate the drink.

Technique and failure points

Old Fashioned is built in the serving vessel, which makes sequence and temperature visible to the guest. Use the approved ice and glass, add measured ingredients in a deliberate order, and reserve carbonated components for the end whenever present.

A built drink should still be integrated. One brief lift or stir is usually more useful than aggressive mixing. Warm mixers, overfilled glassware, and unmeasured free-pouring are the common reasons a simple build tastes inconsistent.

• An unlabeled syrup concentration causes the same ounce measure to produce different sweetness and body.

• Free-pouring into the serving glass makes a simple drink drift quickly during a rush.

• Changing the glass, fill line, or garnish without retesting alters yield and guest perception.

Service-speed and batching plan

Failure laboratory

FailureDiagnosisCorrection
Balance is wrongConfirm measures, product identity, fresh-ingredient condition and dilution before changing the recipe.Correct the causal variable; do not hide an acid/dilution error with random sugar.
Batch or service is inconsistentCheck scaling math, homogeneity, portion tool, temperature and separation.Return to the controlled 1× spec, re-calculate, mix completely and re-verify one service portion.
Aroma/texture is flatInspect freshness, temperature, carbonation/aeration and garnish handling.Restore product condition or technique rather than simply increasing ingredient quantity.

Version control

Do not silently change the working formula. Record the recipe version, date, reason for change, test result and person approving the update. If a brand or product specification changes, rerun the sensory and cost check before treating the substitution as equivalent. A formula is professional only when the team can reproduce the same intended result and explain why a revision was made.

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