J'adore Tamarillos (aka Tree Tomatoes). They are an acquired taste for some but over icecream or even on their own, to me they are perfection. You can eat them raw, just slice in half and spoon out the luscious flesh. If a little tart, just sprinkle with sugar.
I like to turn them into a sauce by heating them in fresh water, just until their skin splits.
Then, remove the skin and mash the flesh. Taste. If needed, add a little brown sugar to sweeten. Pop them in the fridge or serve warm straight away. Heavenly!