I just love it when my cakes come out well! This one I baked the day before and frosted with a white crumb coat.
The following day, I frosted it again and added the flowers. I had to practice a lot to get the flowers just right! I used Wilton frosting tips and bags, and a Wilton turntable. If you bake cakes a lot and want that super-smooth frosting, a turntable is a must!
Also, to make the frosting really, really smooth, let the cake dry 10 minutes after frosting. Then using a Viva paper towel (which is the only brand with a truly smooth surface), place the paper towel on the surface of the cake and rub it smooth. Here are directions from Frost Me Up.
Here is the Wilton Buttercream frosting recipe, which I use almost exclusively. It is yummy, doesn’t wilt in hot weather, and holds up to complicated piping and flower decorations. Double the recipe so there is plenty to ice the cake and make decorations. One bag of confectioner’s sugar is the amount needed for a double recipe, so you needn’t measure it. Then the trick to piping and creating flowers is to omit the 2 tablespoons of milk so the frosting is fairly stiff.
Cake Style has an excellent video tutorial that might be helpful if you want to learn to make this cake!