Choose soft ingredients like banana, yogurt, avocado, or canned fruit
Mash the fruit thoroughly with a fork in a bowl or cup
Add liquid such as milk, juice, water, or plant-based milk
Stir vigorously with a spoon or whisk until as smooth as possible
Use a jar with a tight lid and shake hard to mix everything well
Press any remaining chunks against the side of the bowl with a spoon
Add ice only if it can be crushed or if you do not mind a less smooth texture
Mix in protein powder, honey, nut butter, or oats if desired
Let the mixture sit for a few minutes to soften ingredients before stirring again
Pour into a glass and drink immediately