For many of us, cooking and eating are great sources of joy and comfort. This week on The Kitchen Café, we're celebrating the food that makes us feel good. Simon Preston meets Melissa Hemsley to celebrate her new book, "Eat Happy". Meanwhile, Neil Forbes and Flora Shedden are joined by amateur baker Nadia Cassar and Charlotte Maberly, programme co-ordinator of the MSc Gastronomy course at Queen Margaret University, to dig deeper into the relationship between food and mood.