How many stalks of celery in 2 cups diced? And how many onions in 2 cups diced? It's easier to know how many to start with, than to start chopping...

I assume one medium onion equals one cup diced, so you’ll need 2. Celery stalks vary, but 3 medium stalks? The recipe is not rigid, and a little more or less won’t be a disaster

Hi Willa P. -- it's difficult to say precisely because celery stalks and onion sizes vary, so here's what I would plan for: 3 to 4 stalks celery and 2 medium onions. If you end up with more than 2 cups or a little less than 2 cups, it's ok. This is a forgiving recipe; have made it several times!