2 tablespoons olive oil
1 bunch spring onions, chopped
1 handful fresh mint, leaves picked
1 pound (500 grams) frozen peas
2 large knobs butter
Sea salt and freshly ground black pepper
Heat the oil in a pan and add the chopped onions, mint, and peas. Cover and leave for a few minutes to steam. Mash with a potato masher. You can do this with a food processor as well, just pulse it until smooth. Whether mashing or pulsing, when it's done add the butter and season very carefully, to taste.