Hi again,
One of the hardest things about making a cupcake (besides burning it) is learning how to pipe icing on top. I used to just get the premade icing and get a spoon and use the spoon to ice, but now that I make my own batter why not make my own icing as well (and pipe it on)
If you don’t know how to make a buttercream icing (here is the link to one, https://www.twosisterscrafting.com/buttercream-frosting/) and if you want to use the premade icing that’s fine, no judgements here.
When I pipe my icing on I use either a plastic bag with a little cut in the corner, or an actual piping bag, but I know some people don’t have that and don’t want to cause more trouble, but if you want to make a rose like the one above all you need is a 2D tip and either a plastic bag or a piping bag to put the tip in to decorate.
Here is a video to demonstrate to make a rose:https://www.youtube.com/watch?v=q1e0TqmNmDg
Here is another video for a two toned rose: https://www.youtube.com/watch?v=qFkj53rDPdU. (basically you save half of the plain icing and half of colored icing and put the white icing on one side and the colored on the other side and pipe normally

I had done little roses on a sheet of parchment paper to freeze to use as a topper on a cupcake and to give one to my nieces before serving the cupcakes.