The key to making pasta with shellfish that isn’t flavorless

This undated photo provided by America's Test Kitchen in May 2018 shows spaghetti with lemon, basil and scallops in Brookline, Mass. This recipe appears in the cookbook “Cooking At Home With Bridget And Julia.” (Daniel J. van Ackere/America's Test Kitchen via AP)

For a recipe with a handful of ingredients, pasta with shellfish is awfully hard to get right.