This weeks question comes from June who writes:
I'm really enjoying your site. My question is in recipes that call for pan that are 8x8, and 9x9, can they be doubled to 9x13's,and would the timing be any different? Thanks June
Here is what I would recommend for changing pan size:
If you have a recipe for a 9”x9” pan, you will have a more accurate result by mutiplying the recipe by 1 1/2 rather than doubling. A recipe for an 8”x8” pan, I would go ahead and double.
Either way, your end result will be a bit thicker than the original recipe so yes, you would have to adjust the cooking time. Start with an additional 5 minutes and keep adding a minute until you get the desired result.
If there is leavener in your recipe, changing the pan size can affect the amount required. In June's case, the quantity should be fine but if your results are dry are metallic tasting, reduce the amount of baking powder or soda. Here is a post that expains why and how to change the amount of leavener.
Feel free to ask me any of your food-related questions, just leave a comment on any post in the Foodie-file. You will find a lot more answers to cooking questions under the Foodies Ask category of the Foodie-file like:
How to Cook Without Wine
Can You Freeze Leftover Cream or Milk
Can You Replace Trans Fat with Butter
How to Rescue Buttercream
What's The Difference Between Potato and Tapioca Starch