Head to head

Cosmonaut vs. Penicillin

Cosmonaut and Penicillin side by side: what changes in the recipe, the balance, the strength and the calories.

The difference, by the numbers

Both have lemon juice. Only the Cosmonaut has gin and raspberry jam; only the Penicillin has Blended Scotch, Islay single malt, honey syrup and fresh ginger. In parts, a Cosmonaut is 2¾ gin, 1 lemon and ¾ raspberry jam; a Penicillin is 2¾ Scotch, ¼ Scotch, 1 lemon and 1 honey. By volume, the Cosmonaut is 61% spirit, 23% citrus and 16% syrup and sugar; the Penicillin is 60% spirit, 20% syrup and sugar and 20% citrus. That makes them close cousins on the ratio map.

The Cosmonaut is the stronger drink in the glass (16.1% ABV against 15.4%), but the Penicillin is the bigger drink, so it holds more alcohol (1.53 standard drinks against 1.35). The Penicillin has more calories (about 204 against 165) and more sugar (13.7 g against 5.4 g). Both are shaken; the Cosmonaut is served in a coupe, the Penicillin in a rocks glass.

On the ratio map

SpiritVermouthCitrusMixerSyrupLiqueurCosmonautPenicillin

Each drink sits nearer the corners it has more of: spirit, vermouth and bitter, citrus, mixer, syrup or liqueur. The gray dots are the other classics. Explore the full ratio map.