Peel the bananas, cut them in half lengthwise and lay them on a baking sheet lined with parchment paper.
Put them in the oven on broil and cook until they start to "caramelize" and get a nice golden color, about 5-6 minutes. Flip them over and continue cooking until this side also gets a nice golden color. Remove from the oven and allow to cool for 10-15 minutes.
Add all the ingredients to your food processor and process until smooth and creamy, about 1 minute.
Transfer to individual ramequins. Cover with plastic film and allow to rest in the refrigerator for at least 1 hour before serving.
Garnish with a dollop of yogurt, a pinch of cacao nibs and a mint leaf, if desired.