A great marriage is one where each person, without agenda, celebrates the unique and distinctive characteristics of the other, and lovingly helps them be the best possible version of themselves. When I see a couple who express this in their relationship I am always moved and inspired, because they are so much more together than they could possibly be individually. In my world I have a number of friends whose marriages have worked out this principle for many years and each day they bring joy to each other, and those in their sphere of influence. In a very roundabout way, this is an introduction to the marriage of ingredients and this recipe. Tomatoes and basil, chocolate and coffee, peas and mint are ingredients that belong together, and, when paired in a recipe with love, care and a little finesse, bring out the very best in each other while still maintaining their individual and distinctive flavours. Potatoes and rosemary are another such pairing, and in this...