Adding a dash of vanilla extract or a sprinkle of salt also won't disrupt your frosting's consistency so use what you like.

Sweetened condensed milk can be added directly to your cake mix in moderation or used as a delicious frosting alternative. Before we look at any potential downsides to using this convenient product, ...

Following boxed cake directions will give you an acceptable result, but why settle for just fine when there are simple hacks ...