Food & Cooking Recipes Breakfast & Brunch Recipes Watermelon Smoothie Be the first to rate & review! By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on January 22, 2019 Print Rate It Share Share Tweet Pin Email Photo: Mike Krautter Prep Time: 5 mins Total Time: 5 mins Servings: 2 A dash of cinnamon and salt enhances the watermelon's natural sweetness. Ingredients 2 cups seedless watermelon chunks, frozen ¼ cup plain yogurt 1 ½ cups skim milk ⅛ teaspoon cinnamon Pinch salt Directions In a blender jar, combine all ingredients; blend until smooth. Rate it Print