Roman Pickles

This is a recipe with serious history, adapted from the first-century Roman writer Columella, whose agricultural manual De Re Rustica documented dozens of pickling and preservation techniques the Mediterranean world used long before refrigeration. Pickled lettuce sounds odd to modern ears, but the ancient Romans treated lettuce as a more substantial vegetable, often cooked, dressed, or preserved.

Vinegar, salt, dill, and fennel make up the brine. The lettuce leaves stay crisp because the cold-pickling method doesn’t cook them, just lets them sit in the briny liquid for 48 hours until the vinegar penetrates and seasons the leaves through.

The original recipe calls for salting the lettuce first to draw out water before pickling. Skipping that step gives you a brighter, fresher pickle but with a slightly shorter shelf life.

Pro Tips

• Use sturdy lettuce leaves like romaine or iceberg, soft butter lettuce dissolves in the brine.
• Toast the fennel and dill seeds briefly in a dry pan before adding to the brine, this releases their oils into the liquid.
• Make sure the jar lid is fully sealed, this is a fermentation-adjacent pickle and air will turn the brine cloudy fast.
• Refrigerate after the 48-hour rest, the pickles will keep about a week chilled.

Variations

• Add the original rue herb if you can find it (bitter and intense), or substitute fresh tarragon for a similar anise-bitter character.
• Add a few cracked peppercorns or a small dried chile for heat.
• Use red wine vinegar instead of plain white for a deeper, more complex brine flavor.