Blend all ingredients in a blender until they reach a frothy consistency.
Turn off the blender and add the rum. Pulse, pressing the button on and off in quick succession.
Taste and add more rum if desired.
Pour into glass bottles and served cold.
Before serving, shake the bottle to blend the ingredients well, and serve over ice.
You can also use the chocolate banana smoothie mix to make this recipe.
If you like chocolate coquito, why not try something a little creative? Add a touch of fresh flavor with strawberry-flavored (or other fruit flavors) Yoplait® fruit smoothies. I tried it with great results, and I'm sure you'll like it too.