Unlike a mint julep, a mojito shouldn’t have just a kiss of mint: a proper mojito will be redolent with the stuff, the aroma and flavor blending with juicy lime for a clear, clean, refreshing cocktail that’s equally at home on the beach as it is in a high-end cocktail bar.
In the bottom of a sturdy Collins glass, combine the mint leaves with 1 teaspoon sugar and 1 teaspoon lime juice. I find that the granularity of the sugar helps to grind up the mint leaves and a little bit of liquid will help draw out the mint, but you don’t want to overdo it on the lime or the sugar will simply dissolve.
Once your initial mint, sugar, and lime are thoroughly smushed (that’s the technical term), add the rest of the lime juice, the second teaspoon of sugar, and the rum. Stir to combine. Add seltzer and stir gently once. Then very carefully slip a few ice cubes into the glass and enjoy.