Let's face it, making breakfast can be a pain on days you're running late. But this simple-to-make recipe from supermodel Karlie Kloss is your key to smoothie success — all you need is milk, fruit, and protein powder. While any of your favorite ingredients will work, we're partial to Karlie's recipe, which reminds us of drinking a chocolate milkshake — except that it's much better for our health! Subscribe to POPSUGAR Fitness! www.youtube.com/subscription_center?add_user=popsugartvfit Visit our website for more great workouts and fitness tips! www.fitsugar.com Are we friends yet? Join us on Facebook! www.facebook.com/POPSUGARFitness Get the latest updates via Twitter! twitter.com/#!/POPSUGARFitness