Orange Date Muffins

1 whole orange

1/2 cup chopped dates

1/2 cup butter or margarine

3/4 cup white sugar

1 tsp baking powder

1/2 cup orange juice

1 egg

1 1/2 cups flour

1 tsp baking soda

1/2 tsp salt

Cut orange into pieces, drop orange into blender with the orange juice and whirl until orange is chopped. Drop in dates, egg and butter. Whirl again. Then add to dry ingredients. Stir until moistened. Bake at 375°F for 20 minutes. Raisins may be substituted for dates.