For the baste, place all the ingredients in a blender and whiz until smooth.
Place the meat and sausage meat in a bowl, add 45ml water, the onion, oregano and 3 tbsp of the jerk baste. Adjust the seasoning, cover with cling film and chill in the refrigerator for at least 1 hour.
Divide the mix into 8 evenly sized burgers and brush with oil.