Buttercream loses its flavor

[Jo4444]

I make a really amazing cupcake with an almond buttercream frosting, but the last two times I've made it the almond flavor is gone the next day. What am I doing wrong or what is happening and how can I fix it?

 

[ChesterV]

I realize this response is very late, but I just saw this post.
Sorry.

Are you using ground almonds for flavor in the buttercream? If so, then you may be using old or stale almonds if they loose their flavor overnight.

If you are using almond flavorings, then the flavoring is either weak and you need to use more, or its one of those fake flavorings that is all artificial. Try using real almond flavoring...it is a lot stronger, you use less of it, and it will last for quite a while.