McDonalds food with the most calories

Can you guess what McDonalds food has the highest amount of calories in it? ................................................................................................................................................ Meals are not included............................................................................................................ This is based on the McDonalds-menu from the USA............................................................. Data is taken directly from the McDonalds website................................................................. https://www.mcdonalds.com/us/en-us/about-our-food/nutrition-calculator.html......................