Method Prep:5min › Extra time:20min marinating › Ready in:25min
Drain the Spanish olives from the brine and place them in a bowl. Between your hands, rub the sprigs of oregano so they release their natural aromas, before sprinkling the sprigs over the olives in the bowl with the crushed chillies.
Drizzle over the olive oil and then turn everything together to mix. Leave to stand for 20 minutes then enjoy the freshly marinated olives, or keep in the fridge for up to a month in a tightly sealed container.