Beetroot tarte tatin Author: Jeroen Valkenier Prep time: 20 mins Cook time: 30 mins Total time: 50 mins Serves: 3 portions Ingredients 25 gr butter 50 gr sugar 50 gr balsamic-vinegar 600 gr cooked beetroot 1 onion 1 clove of garlic 2 tspn thyme 250 gr puff pastry 1 egg 100 gr feta cheese 50