Crockpot Berry Cobbler

1 1/4 Cups all-purpose flour, divided
2 Tablespoons PLUS 1 cup sugar, divided
1 Teaspoon baking powder
1/4 Teaspoon ground cinnamon
1 Egg, lightly beaten
1/4 Cup 2% milk
2 Tablespoons canola oil
1/8 Teaspoon salt
2 Cups unsweetened raspberries
2 Cups unsweetened blueberries
2 Cups vanilla frozen yogurt, optional

In a large bowl, combine 1 cup flour, 2 tablespoons sugar, baking powder and cinnamon. In a small bowl, combine the egg, milk and oil; stir into dry ingredients just until moistened (batter will be thick). Spread batter evenly onto the bottom of a 5 quart crockpot coated with cooking spray.
In a large bowl, combine the salt and remaining flour and sugar; add berries and toss to coat. Spread over batter.
Cover and cook on HIGH for 2 to 2 1/2 hours or until a toothpick inserted into cobbler comes out without crumbs. Top each serving with 1/4 cup frozen yogurt if desired.