Bring 2 inches of water to a boil in a small saucepan. Add cranberries, boil for 2 minutes. Drain and cool for 5 minutes.
Meanwhile, whisk all-purpose flour, whole-wheat flour, cornmeal, sugar, baking powder, salt and nutmeg if using) in a large bowl.
Whisk milk, egg substitute, oil and vanilla if using) in a small bowl until combined.
Coat a griddle or large nonstick skillet with cooking spray; heat over medium heat. Using 1/4 cup of batter for each pancake, cook 2 pancakes at a time until bubbles dot the surface, 2 to 3 minutes. Flip and continue cooking until browned, 1 to 2 minutes more. Repeat with the remaining batter.
Makes 2 servings, 2 pancakes each.