Whether for brunch, lunch or dinner, these baked eggs are a speedy way to provide booming flavour and a dose of healthy comfort food. A basic tomato sauce is the hallmark of any good home cook and here it is put to good use to coddle eggs until their yolks are runny and unctuous. With an injection of dark heat from the harissa paste, for me this is all too often the answer to the question: ‘What’s for dinner?’