Green beans get a zesty Italian treatment for this fresh side: they’re sauteed in caramelized shallots and vinegar (agrodolce), then topped them with citrusy, nutty gremolata, which Haas says is good enough to eat by itself.
Green beans: In a large sauté pan over medium heat, add 2 tablespoons olive oil. Add the shallots, season with salt and pepper, and cook, stirring occasionally, until tender and translucent, about 3 minutes. Add the red wine vinegar and cook until reduced by half; then add the remaining olive oil and the green beans. Season with salt and pepper. Use tongs to stir and coat the green beans in oil. Continue cooking over medium-low heat, stirring occasionally, until tender but with a slight crunch, 6–8 minutes. Meanwhile, assemble the Almond Gremolata.
Almond Gremolata: Mince the garlic. Combine with almonds and preserved lemon. Finely chop the parsley and add to other ingredients; give a quick stir to combine. Add the Champagne vinegar, olive oil, and sugar; whisk until well combined. Season to taste with salt and pepper. Set aside. Makes about 2 cups. (Note: If making ahead of time, store in a lidded container in the refrigerator for up to 2 weeks. Bring to room temperature and stir to recombine before using.)
Assembly: Transfer green beans to a serving platter and top with a few spoonfuls of Almond Gremolata. Serve warm or at room temperature.