Some of the best meals I’ve made (and eaten) have been collaborative efforts. My yen to cook with others started young. Whether I was helping my mother to assemble cream puffs, filling pans of madeleines, or prepping chicken milanese, the food, and the time we spent making it, was an expression of love. Cooking solo is fun in its own right, but when other people join you in the kitchen, memories are made. A few weekends ago, we did just this when our dear friend, Linda, visited to show me how to make Marcella Hazan’s Tomato Sauce with Butter and Onion.