Best-Ever Succotash Recipe | There are three must-have ingredients in a good pan of succotash. You must have fresh tomatoes, and we prefer cherry tomatoes to boost the sweetness of the dish and add a little acidity for balance. Instead of heavy cream, this recipe calls for salted butter to give the colorful vegetables richness without turning them gray. And where many succotash recipes call for soft herbs such as tarragon, chives, and parsley, we prefer basil.