Weight Watchers Milk Shake (Flex or Core) from Food.com: This is from a very old Weight Watchers pamphlet for Week One of the diet. I love this milk shake. It's surprisingly thick and tasty. Weight Watcher Smoothies, Weight Watchers Diet, Yummy Drinks, Healthy Drinks, Yummy Food, Tasty, Skinny Recipes, Ww Recipes, Healthy Recipes