Harissa can be bought ready-made in jars, or you can blend red chillies to create your own hot sauce, making it as deadly or as delicate as you want it to be. Harissa paste will keep in the fridge ...

Toasted walnuts are a surprise addition to the creamy, smoky red pepper puree that gets swirled into these harissa-spiked steamed mussels. Recipes published by Food & Wine are rigorously tested by ...