Although they're very popular in the United States, cold pasta dishes are rarely found in Italy. Like most American pasta salads, this one has a mayonnaise dressing, but the proportions of the ingredients result in a bright, lemony, herbaceous dressing that's not overwhelming. The recipe calls for mixed herbs, but you can focus on just one if you like, dill would be the most logical candidate because of its natural affinity with salmon.
| 4 | ounces snow peas |
| 1 | large egg yolk, at room temperature |
| 2 | tablespoons freshly squeezed lemon juice, plus more to finish, plus 1 teaspoon finely grated lemon zest |
| 1 | teaspoon Dijon mustard |
| 1/4 | teaspoon minced garlic |
| 1/8 | teaspoon cayenne pepper |
| 1 | cup plus 2 tablespoons extra virgin olive oil |
| 1/2 | cup grapeseed or canola oil |
| 1 | pound dried farfalle (bow-tie) pasta |
| 1 | cup watercress leaves or pea shoots |
| 1/4 | cup thinly sliced green onions |
| 8 | ounces smoked salmon, cut into wide ribbons |
| 1/4 | cup mixed fresh herbs, such as chives, dill, tarragon, and chervil |