Sponge cake quantities/recipe for a 9x13x2 tin

[LadyPenelope]

Please can you help?

It's so annoying because I did it last year and it worked out fine but I obviously didn't keep the recipe ... and last year I found threads and links and this year nada.
Please save me as I need to bake it tomorrow.

Thank you!

I have a tin which is 12 x 9 x 1.5 and for say a lemon drizzle cake the amount would be 8 of sugar, 8 of marj, 10 of flour and 4 eggs.

Seen as your tin is slightly larger, I would be tempted to do 10oz of everything and 5 eggs?