If Little Gem lettuce is unavailable, bright green, crisp hearts of romaine or baby romaine are a fine substitution.
In a small bowl, whisk the anchovies, garlic, lemon zest and juice, mustard, honey, 3/4 tsp. salt, and 1/4 tsp. pepper. Drizzle in the oil, whisking until emulsified. Gently stir in the chives.
Arrange the lettuce on a platter, drizzle with most of the vinaigrette, top with the prosciutto, drizzle with the remaining vinaigrette, and serve.
nutrition information (per serving):
160, Fat Calories
15, Saturated Fat
2.5, Polyunsaturated Fat
1.5, Monounsaturated Fat
Recipe adapted from Moveable Feast with Fine Cooking.