Preheat the oven to 425°F. Grease (or line with parchment) a 15×10-inch rimmed baking sheet or jelly roll pan or a 14-inch round pizza pan. (Two 9-inch cake pans would cover approximately the same surface area.)
2. In a large bowl, whisk together all of the ingredients–except the chocolate chips–until thoroughly incorporated. (Be careful not to over-mix though.) Pour the batter into the prepared pan, and then sprinkle the chocolate chips evenly overtop.
3. Bake for 10 to 12 minutes, depending on oven and precise dimensions of pan used, or until the pancake is cooked through and lightly golden on top. Cut into wedges and serve.