Mix Miso paste, honey, mustard, ginger, garlic, soy, vinegar & ½ sesame seeds.
Cut aubergines length-wise then cross-cut flesh; brush scored side with ½ Miso mix.
Place on medium grill, cut face-down to sear then turn and baste with remaining Miso mix, turn frequently until charred all over, about 15 minutes.
Set aside to cool, round 5-10 minutes.