Orange Blueberry Coffee Cake

I made this recipe a couple months ago and took some to work with me for a Staff Meeting and got tons of compliments, so I'm sharing it with you! I am not real sure why I made it in a loaf pan - but it turned out fine. :)

Orange Blueberry Coffee Cake

1 1/2 cups flour
3/4 cup sugar
2 tsp. baking powder
1 egg
1/2 cup orange juice
1/4 cup cooking oil
1 or 2 cups blueberries

Topping:
1/4 cup packed brown sugar
1 tbs. flour
1 tbs. butter
1 tsp. ground cinnamon

Stir together flour, sugar and baking powder. Combine egg, orange juice, and oil and add to flour mixture. (My recommendation: Add some orange zest for more orange-y flavor!) Add blueberries. Turn into greased 9x9x2 baking pan. Combine butter, 1 tbs. flour, brown sugar and cinnamon. Sprinkle mixture over batter. Bake at 375 for 40 minutes.