Combine remaining 2 cups flour, remaining 1/2 teaspoon cinnamon, baking powder and salt in small bowl. Beat remaining 3/4 cup granulated sugar and 1/4 cup softened butter in large mixer bowl until mixture is grainy. Add remaining egg; beat well. With mixer on low, add evaporated milk and remaining teaspoon vanilla extract. Gradually add flour mixture until incorporated. Mixture will be thick. Gently stir in blueberries.