You may be referring to a ground cherry. I find them at the farmer's markets in the Portland, OR area and have had some luck growing them at home. They are a tomatillo, but have a totally different flavor. Look for varietals called Aunt Molly's or Pineapple. I like both of them. Here is a link to some seed: https://territorialseed.com/collections/open-pollinated-heirloom-ground-cherry?gclid=CjwKCAiAmJGgBhAZEiwA1JZolrTPWelJBzzqsJFjgTiOQiX45rf_GQyOTJjzF9RoPYMCM1sn5jjZ2xoC_GsQAvD_BwE
You may be referring to a ground cherry. I find them at the farmer's markets in the Portland, OR area and have had some luck growing them at home. They are a tomatillo, but have a totally different flavor. Look for varietals called Aunt Molly's or Pineapple. I like both of them. Here is a link to some seed: https://territorialseed.com/collections/open-pollinated-heirloom-ground-cherry?gclid=CjwKCAiAmJGgBhAZEiwA1JZolrTPWelJBzzqsJFjgTiOQiX45rf_GQyOTJjzF9RoPYMCM1sn5jjZ2xoC_GsQAvD_BwE