Blueberry Streusel Muffins

"Look no further for the best blueberry muffin recipe! Make these homemade tender and moist blueberry muffins with a crumb topping. The batter is made with vanilla Greek yogurt to give these muffins the best texture and flavor. Fresh or frozen blueberries can be used. If using frozen berries, toss them in right from the freezer. No need to let them thaw. The muffin is topped with a delicious streusel that will have you coming back for more. "