10 Inch Cake Pan Recipe. For rectangular pans at least two inches deep, i multiply the area of the pan by 0.37 to determine the approximate amount of batter needed. It means that you need to multiply the ingredients by 0.64.
About 35 ounces of batter. 25 to 30 minutes at 350°f; Plus a generous 1/2 tbsp.;
About 1 3/4 ounces batter.
Adjust the recipe as needed. In that case, you need to use the following formula: 50 to 60 minutes at 350°f. Of vanilla extract, or 1 tbsp.