Steps
1. Mash the ripe banana in a bowl.
2. In a small saucepan, heat the milk over medium heat until it comes to a gentle simmer.
3. Stir in the oatmeal and let it cook for about 5 minutes, or until it thickens.
4. Remove from heat and let it cool slightly.
5. Pour the milk and oatmeal mixture over the mashed banana and stir well to combine.
6. Transfer the mixture to serving bowls and refrigerate for at least 1 hour.
7. Serve chilled and enjoy!