For a deeper caramel flavor, use brown sugar instead of white sugar for the fruit layer. If you don't have vanilla soy milk, regular milk or another plant-based milk alternative will work. Serve with a scoop of vanilla ice cream or a dollop of whipped cream for an extra touch of indulgence. The cake is best enjoyed warm or at room temperature on the day it is baked, but can be stored in an airtight container for up to 2 days.