Mix all the marinade ingredients together. Thinly slice the aubergine and put in the marinade, coating thoroughly. Leave for 10 to 15 minutes.
Remove the aubergine from the marinade, and set the marinade to one side. Grill the aubergine slices and halloumi on both sides for 10 to 12 minutes until cooked through and brown. (You can barbecue or griddle as well.)