Blueberry Sour Cream Coffee Cake

Ingredients:

 

1 cup butter, softened

 

 

2 cups white sugar

 

2 eggs

 

1 cup sour cream

 

1 teaspoon vanilla extract

 

1 ⅝ cups all-purpose flour

 

1 teaspoon baking powder

 

¼ teaspoon salt

 

1 cup fresh or frozen blueberries

 

½ cup brown sugar

 

1 teaspoon ground cinnamon

 

½ cup chopped pecans

 

1 tablespoon confectioners’ sugar for dusting