Traditional dalgona-style coffee often starts with whipped instant coffee, sugar and water. The source's alcoholic variation instead describes an espresso-and-cream topping served with milk, coffee liqueur and rum. These are related presentations, not identical formulas.
The layered appearance is part of the idea, while sweetness comes from several components. Coffee liqueur, whipped topping and any syrup need to be considered together. A stronger coffee flavor does not necessarily require increasing every sweet ingredient.
The retained article does not preserve a complete measured ingredient set, so this profile should not be treated as a fully specified recipe. Use a reliable formula for the topping and base if you want repeatable layers. The coffee element does not reduce the effect of the alcohol, and an alcohol-free version needs its own balanced set of ingredients.
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