Hootie’s Blueberry Muffins with Streusel Topping

When and how the German word Streusel (“a sprinkling” or “crumbs”) evolved in the South to denote a crumbly, sweet, spicy topping sprinkled on breads, muffins, cakes, and coffee cakes is a real mystery, but I don’t think I know a serious cook who doesn’t boast his or her special streusel topping. I first tasted my sister’s blueberry muffins at a big Sunday brunch she threw at her home in Wilmington, North Carolina. Over the years, she modified the topping from time to time with different nu