Chocolate Mud Pie

I've been experimenting with different recipes and made this one last night. Brock has declared it as his favorite of the favorites:

Chocolate Mud Pie
It has gooey chocolate cake and yummy chocolate sauce all in one! Yum!

1/2 cup flour
1/4 cup granulated sugar
1 Tablespoon unsweetened cocoa powder
1/8 teaspoon salt
1 teaspoon baking soda
1/4 cup fat-free milk
1 Tablespoon canola oil
1/2 teaspoon vanilla
1/4 cup chopped walnuts (optional)
3 Tablespoons packed brown sugar
2 Tablespoons unsweetened cocoa powder
2/3 cup water
Fresh berries (optional)
Vanilla ice cream or yogurt (optional)

1. Turn on over to 350. Lightly coat a 9-inch pie plate with cooking spray.
2. Put the flour, granulated sugar, 1 T. cocoa powder, and salt in a med. bowl. Stir with spoon to mix. Stir in the milk, oil, and vanilla, and walnuts if you like them.
3. Pour batter into prepared pie plate. Put the brown sugar and the 2 T. cocoa powder in a small bowl. Stir with spoon to mix. Put the water in a glass measuring bowl and put it in the microwave and cook on high for about a minute or until bubbly. Take from the microwave and carefully stir the water into the brown sugar mixture. Slowly pour brown sugar mixture over batter in pie plate.
4. Put the pie plate in the oven and bake for 20 minutes. Cool for 20 minutes and serve warm with berries and scoops of ice cream if desired.
Makes 6 servings. 127 calories per serving. 3 g fat, 0 cholesterol, 117 mg sodium, 25 g carbohydrates, 16 g sugar, 1 g fiber, 2 g protein.