Gather all your ingredients and make sure your fruit is frozen. If using fresh fruit, add a few ice cubes to maintain a cold and thick texture.
In a blender, combine the frozen mixed berries, banana, yogurt, milk, honey, and vanilla extract. Blend on high until smooth and creamy. If the smoothie is too thick, add a little more milk; if it’s too thin, add a handful of ice cubes and blend again.
Give your smoothie a quick taste test. If you’d like it sweeter, add a little more honey or maple syrup and blend again.
Pour into a glass, garnish with fresh berries or a sprinkle of granola, and enjoy immediately!