I used fresh blueberries that had been frozen until ready to use. Which I thought would add extra moisture since one reviewer said hers were dry. I also coated them in flour. They came out perfectly moist. The crumble was good but next time I will sprinkle Some variation of sugar in the raw as the muffins themselves were perfectly sweet and I personally didn’t need the extra calories in the crumble that was made with butter, more sugar and flour.
