Macaron Poem by Ima Ryma

I am a macaron and be
Around since time of Renaissance
As a coveted French pastry,
Lots of appealing ambiance.
A meringue based confection sweet
With varied fillings 'twixt and 'tween,
An easily melt in mouth treat.
I'm quite a popular cuisine.
I'll provide a moment of bliss
If you decide to select me.
Mixed emotions on telling this,
Limited my shelf life does be.

I used to be a macaron,
But you ate me and now I'm gone.