Sticky Toffee for 16!

Sticky toffee puddings for a dinner party for 16 people. Lindsey instead of doing the recipe twice (2 x 8 mini puddings) could I make this in one large dish? If so what size dish and how long would I need to cook it for (presumably at the same temperature)?

I note from another enquirer, who wanted to cook the single recipe in one large dish, that you recommended cooking in a 1.2l dish. Would I be better off doing this but x 2?

Thank you.

Eileen