In a medium bowl, stir together the flour, sugar, baking powder, cinnamon, and salt. In a small bowl, heat the buttermilk in the microwave for about 1 minute, or until it's almost boiling. Place the tea bags into the hot buttermilk, and let the mixture steep for about 10 minutes, and then discard the tea bags. In the same bowl, stir together the buttermilk, vegetable oil, vanilla extract, and the egg. Pour the wet ingredients into the dry.