John and Lisa are looking at all things baked and beautiful this week in their Weekend Kitchen. They start with a classic coffee and walnut cake and have plenty of hints and tips on how to perfect it. Next, it's John's focaccia, which he likes to serve as a giant sandwich. Then onto a different sort of bake - a traybake - and this one is full of delicious creamy fish, potatoes and croutons. And there's a stunning centrepiece to end on - their strawberry shortcake crunch.