In a medium mixing bowl stir together flour, sugar, baking powder, salt and cinnamon. Make a well in the center of the dry mixture and set aside.
In a second medium mixing bowl combine the egg and soy milk. Add egg mixture all at once to the dry mixture. Stir until just moistened (batter should be lumpy).
For standard-size pancakes, pour about 1/4 cup of batter onto a hot, lightly greased griddle or nonstick pan. Cook over medium heat about 2 minutes on each side or until pancakes brown, turning to second sides when pancakes have bubbly surfaces and edges are slightly dry.