I have an order for tomorrow that I have just basically finished. The chocolate cupcakes are done with fondant toppers already placed. The strawberry cupcakes are boxed but I didnt place the toppers because I'm afraid they will wilt. The strawberry buttercream is not near as stiff as the chocolate buttercream. I have to deliver these with a 6 inch cake tomorrow in 100° heat. I'm nervous that everything is just going to melt and wilt on the 30 MIN drive. I'm thinking I may wait to place the strawberry fondant toppers when I get there. I'm delivering 3 hours before the party so plenty of time for it to mess up there. Ugh. Hope it goes better than I'm expecting.

Put the cupcakes in the refrigerator for a short time to stiffen them up for transport and then add the fondant at the venue.

No worries.... I live in SouthTexas (extreme heat and humidity) and as long as cupcakes/cakes are refrigerated for about 4-6 hours before leaving - buttercream will be fine! Place fondant either just before leaving, or at the venue. Make sure to have your vehicle good and cool (turn on AC full blast for about 5-10 minutes before loading the cupcakes. If cupcakes are being placed near a window - COVER with blanket/towel to keep from direct sunlight!! Hope that helps. Summer months are hard on us bakers!!!

Ok, thank you! I couldn't go to bed without a plan.