Blueberry Muffins with Streusel Topping

6 Tablespoons softened butter

2/3 cup sugar

2 eggs

1 teaspoon vanilla extract

2 teaspoons baking powder

1/4 teaspoon salt

2 cups flour

1/2 cup milk

2 cups fresh or frozen blueberries

Streusel Topping:

2 tablespoons butter

2 tablespoons brown sugar

1/4 teaspoon cinnamon

1/2 cup chopped walnuts

Heat oven to 375. In a large bowl, cream together the butter and sugar until fluffy. Beat in the eggs. Add the vanilla extract, baking powder and salt. Mix in half of the flour and milk alternately, mixing gently by hand. Then add the remaining flour and milk. Stir in the blueberries. Fill greased muffin tins or foil baking cups.

To make streusel topping, cut the butter into small pieces and mix it with the brown sugar, cinnamon, and walnuts. Sprinkle the topping over batter. Bake 25-30 minutes until muffins are lightly browned. Makes one dozen muffins.