Reconstructed from the formula documented in Everett Beal's 1979 recipe book as published by the Atlanta Journal-Constitution and subsequently investigated by This American Life in 2011Primary sources: Mark Pendergrast, For God, Country and Coca-Cola, Basic Books, 2000; This American Life, Episode 427, February 2011; Christian Science Monitor, February 2011; Everett Beal recipe book, 1979, as cited in Atlanta Journal-ConstitutionImportant transparency note: The Coca-Cola Company has consistently denied the authenticity of any publicly revealed version of their formula. This reconstruction is a home approximation based on the most thoroughly documented leaked recipe available. It is a food history experiment, not a claim to have reproduced the exact Coca-Cola formula.
Prep Time 20 minutesmins
Cook Time 15 minutesmins
Ingredients
For the base syrup:
2cupswhite sugar
1cuphot water — for dissolving the sugar
1tspcitric acid — the documented acidulant in the original formula
Juice of half a lemonfreshly squeezed — lime juice is documented in the original. Lemon is the closest accessible substitute
¼tspcaffeine powder — available from supplement retailers. Handle carefully. A kitchen scale that measures to 0.1g is strongly recommended. The documented original contained approximately 34mg of caffeine per serving
1tspcaramel colouring — available from homebrew suppliers and online. This gives the syrup its characteristic dark colour
¼tspvanilla extract — documented in the Beal recipe as a base syrup component
For the 7X flavour blend:
60mlEverclear or another high-proof grain alcoholat least 75 percent ABV — this is the documented carrier for the essential oils
20drops orange oil — food grade essential oil
30drops lemon oil — food grade essential oil
10drops nutmeg oil — food grade essential oil
5drops coriander oil — food grade essential oil
10drops neroli oil — food grade essential oil. This is the most distinctive and most expensive component. Available from specialty food and aromatherapy suppliers
10drops cinnamon oil — food grade essential oil. Use sparingly as cinnamon oil is extremely potent
For the finished cola:
Chilled carbonated water
Ice
Instructions
Make the 7X blend first
Combine the high-proof alcohol with all the essential oils in a small glass bottle or jar. Add each oil one at a time, counting the drops carefully. Seal and shake gently. Allow to sit for at least 30 minutes before using. This blend can be made ahead and stored in a sealed glass container. The longer it sits the more integrated the flavours become.
Make the base syrup
Combine the sugar and hot water in a small saucepan over medium heat. Stir until the sugar is completely dissolved. Do not boil. Add the citric acid and stir until dissolved. Add the lemon juice, vanilla extract and caramel colouring. Stir to combine. Remove from heat and allow to cool to room temperature.
Add the 7X blend
The documented ratio from the Beal recipe is 2oz of 7X to 5 gallons of syrup. Scaled for a home batch, add approximately ¼ teaspoon of your prepared 7X blend to the full batch of syrup. The 7X is extremely concentrated and a little goes a very long way. Stir thoroughly. Taste the syrup. It should be intensely sweet, acidic, complex and aromatic. If the oil character is too strong reduce the 7X. If it seems flat add a few more drops.
Assemble the cola
The standard syrup to carbonated water ratio for cola is approximately 1 part syrup to 5 to 6 parts carbonated water. Fill a glass with ice. Add 2 to 3 tablespoons of syrup. Top with chilled carbonated water and stir gently. Taste and adjust the syrup quantity to your preference.
Video
Notes
Caffeine powder requires careful handling. It is genuinely potent and accurate measurement matters. Use a precision kitchen scale rather than measuring spoons. The lethal dose of caffeine is approximately 10 grams for an adult, which is a relatively small volume of powder. Measure carefully and keep it out of reach of children.
Neroli oil is the most expensive and most difficult to source component of the 7X blend. It is available from reputable essential oil suppliers including Mountain Rose Herbs and similar specialty retailers. Use food grade oil specifically. Cosmetic grade or aromatherapy grade oils are not certified for consumption.
The finished reconstruction will be noticeably more complex and more herbal than commercial Coca-Cola. The neroli in particular produces a floral quality that the modern commercial product has largely refined away. Whether you consider this an improvement or a curiosity is a matter of personal taste. As a food history experiment it is genuinely interesting. As a commercial product it is clearly less calibrated than 140 years of industrial flavour refinement would produce. Both of those things are simultaneously true.