For the beetroot cream, puree the egg, 1 egg yolk, lemon juice and mustard in a tall beaker with a hand blender, slowly adding 1⁄4 l oil until a creamy mayonnaise is obtained. Remove the beetroot from the packaging and collect any beetroot juice (attention - it stains strongly! Wear disposable gloves).
Puree half of the beetroot, cut the rest into small cubes. Mix both with 3-4 tablespoons beetroot juice or water into the mayonnaise. Season to taste with salt and pepper.
For the tempura dough, mix tempura flour, 1 egg yolk and 1⁄4 l ice-cold water briefly, then put it in a cool place. Clean and wash the cauliflower, cut into small florets and cook in boiling salted water for 4-5 minutes.
Drain it.
Remove the outer chicory leaves. Wash the chicory and cut in half lengthwise. Caramelise the sugar in a large pan until light brown. Deglaze with orange juice, soy sauce and cream. Add butter and bring to the boil.
Add the chicory to the stock and simmer at low heat for about 10 minutes.
Heat 1 l oil in a wide pot to approx. 175 °C (use a grease thermometer or hold a wooden stick into the oil - if bubbles rise, the oil is hot). Pull the cauliflower florets through the tempura dough with a fork, let them drip off a little and fry them in the hot oil for 2-4 minutes, turning them from time to time.
Drain on kitchen paper.
Remove the chicory from the stock, arrange with cauliflower and beetroot cream. Garnish with beetroot leaves.