-
Preheat oven to 180°C and line a loaf tin with baking paper.
-
Toast the walnuts on a baking tray in the oven for 5 minutes if using.
-
Whisk together olive oil, tahini, honey, dark brown sugar and eggs.
-
Stir in mashed banana.
-
Sift over the dry ingredients and fold to combine. Fold in the dark chocolate and/or walnuts.
-
Pour into tin and top with halved banana and sprinkled sesame seeds.
-
Bake 40-50 minutes until a skewer inserted in the centre comes out just clean (except if it’s just getting melted chocolate). Leave to cool in the tin.