Clueless!
Clueless!
Sounds like it should be a Plum

Double? Pawpaw is the only thing I can think of with fruit that is double

The question or fruit, has nothing to do with double, Rob.

but saying it twice... hm...

Tomato?

Sue

Grapes, grapes. lol
Mary

I'll say apple.

Don't make me repeat myself!

I'll say pear. It's shape could kinda be double.

cherries

cherries

Well, I said cherries earlier but must have pushed the wrong button. The only reason I said cherries is because no one else had but now foggy has. Nevertheless, I'm sticking with it!

foggyj - LOL

Without any specifics my guess is that two different fruit have a variety named Black Amish.

And then to throw out a more-or-less random guess based on that initial guess:

Black Amish Tomato
and
Black Amish Cherry