Organic Hawthorne Berry Powder is best thought of as an herbal/apothecary ingredient with a tart berry character. Because it is a powder, it can be stirred into warm drinks, blended into an herbal preparation, or used where a fine texture makes more sense than whole berries. If you are asking about hawthorne for a health reason, especially anything heart-related or medication-related, check with a qualified clinician before using it that way.
From the Spice Barista
What would I actually do with hawthorne berry powder?
A real customer question, curated into a useful guide for cooking, product use, and finding just the right thing.