Preheat your oven to 190°C/375°F/gas mark 5.
Place your cashew on a baking tray and roast in the oven for 10 minutes, giving them a shale halfway through. Remove and leave to cool.
If using fresh peas, pod them and add to a pan of boiling water. Cook for a couple of minutes until tender, drain and run under cold water to cool. If using frozen peas, defrost first then add with the rest of the ingredients to your food processor. Whizz until smooth.
Place in a serving bowl and drizzle with olive oil. Serve with a big bowl of crisps (e.g Sea Salt Properchips).