This recipe is great when you have left over papaya skin! Grilled steak is the star of many a braai. The papaya skin is the tenderizer for the steaks and the flesh can be saved for another recipe. The onions in the sambal are salted and then rinsed cleaned, this process softens them and removes their bitter juices. The Malay makes about 1 1/2 cups. The recipe is adapted from Jenna Holst from A South African Barbecue. MAKE AHEAD: The sambal can be prepared through the first step up to 1 day ahead. Steaks marinate for 1 1/2 - 2 hours.