Whisk coconut milk, egg yolks, and vanilla together over medium heat.
Stir constantly with whisk or wooden spoon until mixture starts to thicken.
Remove from heat.
In a small frying pan, heat the coconut oil and coconut butter over medium heat, and add slightly mashed bananas along with cinnamon. You’re just cooking long enough to let bananas start to caramelize somewhat.
Pour the coconut milk and egg mixture into a food processor or blender along with the cooked bananas, and process until smooth and creamy.
Refrigerate to chill and serve topped with some sliced bananas!