Combine all ingredients except chocolate chips into an oversized mug and mix with a small whisk until batter is smooth. Stir in half of the chocolate chips.
Line a large round plate with parchment paper. Dump cookie batter onto plate. Batter will be quite sticky. Try your best to shape it into a round disc (like photo above). Add remaining chocolate chips on the surface.
Cook in microwave for about 50 seconds (careful not to overcook because just a few seconds can overcook the cookie). Let cookie cool for a few minutes before eating.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.