Your choice of good quality vanilla ice-cream, to serve
Toss the bananas in 2 tbsp of the sugar. Heat your heavy based pan, or griddle to medium, (I use my George Foreman Grill) then cook the bananas, a few pieces at a time, until sticky and showing griddle marks. Keep warm in a low oven.
Sauce (can be made the day before): Put the remaining sugar, the butter and cream into a saucepan and stir over a gentle heat until the sugar has dissolved. Stir in the sesame seeds.
To serve, put a few pieces of banana into serving dishes, spoon over some of the sauce, then top with a scoop of ice-cream.