Our Dessert

Remove that pie plate from your bag, my friend,
And place it on the counter, over there.
Now sit yourself on this nice Windsor chair
To tell us all about what you intend:
Was this dessert for us? Would that depend
On whether happiness was in the air
Or sorrow? Everybody gets a share,
I hope; it is a berry-apple blend.

Round fruits, round crust, together: welcome sight!
They say circumference divided by
Diameter's supposed to give you pie.
I hope the mathematics sheds some light,
But even if we didn't get it right
We'll have a bite or two while you reply.