Celery Spinach Smoothie 1 medium apple, quartered 1 T lemon juice or a slice of lemon without peel 1 large stalk of celery, with leaves (1 piece) 1 small handful of spinach 1 tsp agave nectar (to sweeten) 1 cup ice Place all ingredients into the Vitamix (except ice) and secure lid. Select Variable 1. Turn machine on and slowly increase speed to Variable 10, then to High. Blend for 1 minute or until smooth. Add ice, blend for 15 seconds more. Serve immediately.