1 1/2 cups flour
1 teaspoon baking soda
1/4 teaspoon salt
1/2 cup sugar
1 large egg
8 oz vanilla yogurt
2 tablespoons Blood Orange Olive Oil
1 teaspoon vanilla extract
1 cup (fresh or frozen) blueberries


Topping
1/2 cup flour
1/4 cup sugar
2 Tablespoons butter or margarine
1 teaspoon ground cinnamon


Preheat the oven to 350 degrees. Coat an 8"x8" baking dish with nonstick spray. In a large bowl, combine flour, baking soda, salt, and sugar. In a medium bowl, combine egg, yogurt, orange olive oil, and vanilla extract. Stir egg mixture into flour mixture, just until moist. Stir in blueberries.

Spoon batter into prepared baking dish. In a small bowl, using a fork, combine flour, sugar, butter or margarine, and cinnamon until mixture resembles coarse crumbs. Sprinkle over cake.

Bake 40-45 minutes or until a wooden pick inserted into the center comes out clean.