Chicken paprikash is a saucy blend of chicken, onions, sour cream and lots of paprika. In this recipe from our cookbook “ Milk Street 365: The All-Purpose Cookbook for Every Day of the Year,” we blend techniques from restaurant chefs and home cooks who taught us their recipes during our visit to Budapest, Hungary. In addition to a generous amount of onion, sautéed until sweet and softened to create a flavorful base, there are a couple other keys to achieving fullness and complexity in the iconic dish.