In this episode, Milk Street highlights the perfect recipes for a wintertime meal. Milk Street Cook Matthew Card prepares a hearty Fennel-Rosemary Porchetta, consisting of aromatic herbs and peppery spices. Milk Street Cook Erika Bruce shows Christopher Kimball how to make a simple, yet decadent Chocolate-Hazelnut (Gianduja) Crostata. Finally, Milk Street Cook Catherine Smart prepares Mashed Potatoes with Caraway-Mustard Butter using an Indian flavoring technique known as tarka, in which herbs and spices are added to hot butter.