Blueberry Streusel Coffee Cake

Preheat oven to 375 F. In a large bowl combine the flour, sugar, baking powder, and salt. Whisk lightly to mix. In a second bowl, mix the egg with the milk and soft butter. Pour the wet ingredients over the dry ingredients and mix gently. Stir in the blueberries and nuts. Spoon batter into a 9 x 9inch pan.

In a food processor, or with a pastry blender, combine the streusel ingredients. Sprinkle streusel onto the cake and bake 35-40 minutes.

May also be baked as muffins or mini muffins.