Sprinkle the topping over the filling. Bake until the topping is golden brown and the filling is bubbling, 45 to 50 minutes.

Set aside to cool. For the crumble topping, add the flour to a mixing bowl and rub in the butter until the mixture resembles fine breadcrumbs and no large lumps of butter are left. Stir in the ...

These homemade blueberry muffins with a streusel crumb topping are the best. They’re light, fluffy, and bursting with sweet ...