Fat Sichuan Prawns Stir-Fry with Crispy Chilli Sauce

Sichuan peppercorns are a mystical ingredient. Their lemon-like taste, with a slightly numbing effect on the tongue, is a powerhouse. But, more importantly, they act as a taste enhancer, magnifying other flavours. Alongside star anise and cinnamon, they are one of the key ingredients in five-spice powder. You can substitute boneless chicken thighs or vegetables in this mouth-watering stir-fry.