Blackberry Cake

Yield:	8 Servings
Categories:	Cakes, Fruits

1/2	c	Butter or margarine; about, cut into chunks
1	c	Flour; approximately
1	c	Plus 1 tbsp sugar; approximately
1	ts	Baking powder
2	lg	Eggs
1	c	Fresh or frozen unsugared blackberries
1	tb	Powdered sugar