When it’s very hot and humid, I start my car with the air conditioning running at high for 20-30 minutes prior to leaving to deliver the cake. I make sure my car is nice and cool before even putting the cake in to deliver it. I leave the A/C on high for the entire drive. Bring a sweater or you will be freezing for the entire drive. Also keep the cake out of direct sunlight, that helps to.
Teri, Ontario, Canada http://www.TeriLovesCake.ca
