Cinnamon Streusel Coffee Cake

from "askGeorgie.com" - http://askgeorgie.com/?p=2739

• Ready In: 45 mins
• Serves: 12
• Yields: 1 9x13 pan

Ingredients

• Cake

• 1  cup  oat flour
• 1  cup whole wheat flour
• 2⁄3 cup  vanilla  whey protein
• 3⁄4 cup sugar
• 1  teaspoon baking powder
• 1  teaspoon baking soda
• 1⁄2 teaspoon salt
• 3⁄4 cup  nonfat plain  Greek yogurt
• 1  egg, lightly beaten
• 2  egg whites, lightly beaten
• 1  cup unsweetened applesauce
• 2  tablespoons canola oil
• 2  tablespoons water

• Streusel Topping

• 1  tablespoon cinnamon
• 2  tablespoons brown sugar
• 1⁄2 teaspoon vanilla extract
• 1⁄2 teaspoon  rum extract
• 1⁄8 teaspoon salt
• 1⁄2 cup quick oats
• 1  tablespoon butter

Directions

1. Preheat oven to 350°F. Coat a 13×9″ baking dish with cooking spray.
2. In a large mixing bowl, combine the oat flour, whole wheat flour, whey protein, Splenda, baking powder, baking soda, and salt; stir to blend.
3. In a separate mixing bowl, combine yogurt, eggs, applesauce, oil and water. Stir until smooth.
4. Add wet ingredients to bowl containing dry ingredients; stir to blend just until uniformly moistened. Spread evenly in pan.
5. In a small bowl, stir together cinnamon, brown sugar, vanilla extract, rum extract, and salt. Add oats and stir to blend. Add butter and rub in with fingers until mixture is moist crumbs. Sprinkle evenly over batter, and use the handle of a wooden spoon to poke some of the streusel into the batter. (Poke it about 20-30 times).
6. Bake 25 minutes; allow to cool before cutting into 12 pieces. Wrap individually in plastic wrap and store in refrigerator or freezer.