A "specialty grocery" refers to a store that sells unique or specific types of food and products. It focuses on offering specialized or hard-to-find items that typically aren't available in regular supermarkets. Full definition
I've found frozen tart cherries a few times in specialty grocery stores and I use them for a late night smoothie occasionally. (truthaboutabs.com)
That means you don't have to hunt down any exotic ingredients or shop at specialty grocery stores to find foods that will help you get on track with a healthy meal plan. (jovinacooksitalian.com)
This is reflected in the huge number of specialty grocery stores that sell anything from Asian herbs to Vegan food. (theravive.com)