Blueberry Muffins with Cinnamon and Brown Sugar Crumble

I barely modified a recipe called “To Die For Bluberry Muffins” from Allrecipes.com. I replaced the white sugar in the crumble with cinnamon and brown sugar.

The muffin is moist, with crunchiness and texture in the right places. Fresh blueberries is a must for this; otherwise, the gushing blueberry nebulas will be sorely absent.