Stir pancake mix and cinnamon in large bowl until well blended. Stir in eggs, milk, oil and vanilla just until blended.
Pour 1/4 cup of batter per pancake onto preheated lightly greased griddle or skillet. Cook 1 to 2 minutes per side or until golden brown, turning when pancakes begin to bubble. Serve pancakes with Spiced Syrup (recipe follows), if desired.