First put the raisins in the rum and let them steep for about 10 minutes, or longer.
Mix the mascarpone with the yoghurt and honey, preferably with a hand mixer.
Mash the bananas well with a fork and add to the cream. Pour off the soaked raisins, collect the rum and also add the raisins to the cream. Rub a little of the tonka bean over the cream, preferably with a fine nutmeg grater or something similar. Mix well.
Mix everything together well manually. Season to taste and, if necessary, add some of the leftover rum.
If you prefer it a little sweeter, you can stir in 2 - 3 tablespoons of sugar.
With chocolate shavings or the like. Arrange and serve.
Quickly prepared, simple, tasty and also good for using very ripe bananas.