Whenever I make mine, I always split the mixture between two sandwich tins and then put the tins straight onto the oven bars and on the middle shelf of the oven.
I only ever advise using a pre-heated baking tray if people are having issues with their oven and their cakes are sinking as it adds heat directly to the bottom of the tin.
I wouldn't advise putting your tins on a baking tray as your sandwich tins would touch and when making Victoria sponges, if the tins touch, the cakes tend to bake towards each other, and you can end up with a wonky peak. So ensure they are about an inch apart if you can.
How to make a Victoria Sandwich 1. Preheat the oven to: Fan assisted: 170ºC Regular oven: 180º/190ºC (Approx) Fahrenheit: 338F Gas Mark: 3 2. Equipment and Ingredients Mixing bowl, electric whisk, spatula, pallet knife, sandwich tins. 150g or 6oz Margarine or Butter 150g or 6oz Sugar...