Sprinkle the streusel evenly
over the top of the batter.
In a small bowl, stir together the granulated sugar and cinnamon, and then sprinkle evenly
over the top of the batter.
Scatter the (optional) chocolate chips
over the top of the batter, and press the chips gently into the batter to adhere.
Then, sprinkle HALF of the cinnamon sugar
over the top of the batter.