Blueberry Muffins

Ingredients

• 1/2

  cup sugar

• 1/2

  cup butter

• 1

  egg

• 1

  tsp vanilla

• 1 3/4

  cup flour

• 4

  tsp baking powder

• 1/2

  tsp salt

• 1

  cup milk

• 1 1/2

  cups blueberries

• Topping;

• 1

  / to 1/2 cup sugar

• 1/2

  cup butter

• 2/3

  cup flour

• 1/2

  tsp cinnamon