Banana Blueberry Crumb Cake

Yummy cake for breakfast or dessert...

1 cup sugar
1/2 cup oil
1 cup (2 medium) mashed ripe bananas
1 (6 oz) container blueberry yogurt
1 tsp vanilla
2 eggs
2 cups all-purpose flour
1 tsp baking soda
1/2 tsp salt
1 cup fresh blueberries

Topping
1/4 cup all-purpose flour
1/4 cup sugar
1/2 tsp cinnamon
3 tbsp butter or margarine

Heat oven to 350 degrees. Grease bottom of an 8x8 baking dish with cooking spray. In large bowl beat together sugar and oil. Add bananas, yogurt, vanilla and eggs; blend well. Add flour, baking soda and salt; stir just until dry ingredients are moistened. Gently stir in blueberries. Pour into prepared baking dish. Combine all topping ingredients then sprinkle over top of cake batter. Bake at 350 degrees for 40 to 50 minutes. Serve warm with whipped cream.