Ah, summer: backyard barbeques, beach vacations, fresh lemonade, and ... a baby the size of a watermelon sitting on your bladder all day? While this time of year can invoke a breezy sense of freedom, ...

In a shaker, combine grapefruit juice, pineapple juice, and coconut water with ice. In a large pot over medium heat, whisk together the milk, cinnamon, vanilla extract, and cayenne pepper if using.