Add Rose Icing Color to a portion of the White Ready-To-Use Rolled Fondant. Add Yellow Icing Color to another portion of the White Ready-To-Use Rolled Fondant.
Roll out fondant 1/8 in. thick and cut hearts with third smallest cutter. Let hearts dry overnight on cornstarch-dusted surface. Write messages on hearts with the red FoodWriter Fine Tip Edible Color Marker.
Bake cupcakes in Hearts Standard Baking Cups or any Valentine Themed Baking Cup, and cool completely on Cooling Grid.
Prepare Buttercream Icing recipe. Ice cupcakes smooth with Spatula.