Tomato caprese salad is a summertime favorite, made with ripe home-grown tomatoes and topped with fresh basil leaves. It's not something I even think of making during the winter, when pale pink tomatoes come to supermarkets from hot houses. Enter the Barefoot Contessa, Ina Garten, author of a dozen best-selling cookbooks. Winter doesn't stop Ina from making tomato caprese salad. She slowly roasts plum tomatoes until they're sweet and caramelized, and layers them with fresh mozzarella…