Peel the oranges cut ftom the centre and take out all the seeds then put it in a mixer grinder and make a puree of it. Then peel and slice the bananas and add to the orange puree and blend again. Now add sweetener, black pepper powder and milk and blend until foamy. Pour it into serving glasses and serve cold or on room temperature as you wish. Your instant energy drink is ready which works as an immunity booster also.