This recipe originates from a restaurant, Roasty Chicken Churrasqueira, located in the town of Maple, Ontario, Canada. Piri Piri sauces are used in Portuguese and African cooking. I fell in love with churrasqueira chicken after trying it in a local restaurant in my home town. I think this sauce is the best of it's kind that I've tried. This recipe will make about 1 cup of sauce.