Banana Cocoa Smoothie

Yields about 2 cups

1 banana, frozen
1/2 cup soft tofu (yogurt can also be substituted)
3/4 cup almond milk (regular or soy milk may be substituted)
1 tablespoon cocoa powder
Ice cubes, optional

In a blender, combine all ingredients and blend until smooth. Pour into chilled glasses and serve with banana slices, if desired