The amount of sugar used in the frosting depends on the taste of the person making the recipe.
I like a less sweet frosting, so I use only 2 cups of sugar. Others might like a more sweet frosting
and should use 3 cups. I feel like 2 ½ cups is a good middle of the road sweetness, so that is
what I call for in the recipe. Feel free to encourage your readers to experiment. I will say that
the cupcakes are not extremely sweet. They have a more mild sweetness, so the sweet frosting
is a perfect compliment.