Clean, wash and quarter the red cabbage and cut it into fine strips from the stalk. Add 2 tsp. salt and knead vigorously with your hands.
Peel and finely chop the onion. Roast the almonds in a pan without fat, take them out. Heat the oil in the pan. Fry the onion in it until transparent. Deglaze with vinegar, bring to the boil. Season to taste with 1 tsp. sugar and pepper, pour marinade hot over the red cabbage.
Mix everything and let it stand for at least 1 hour.
Cut dates in half lengthwise and stone them. Cut dates into strips. Peel grapefruits, removing all the white skin. Remove the fillets with a sharp knife between the parting skins.
Cut fillets into pieces if necessary, chop almonds roughly if necessary. Add grapefruit, dates and almonds to the red cabbage.
Cut the cheese into 8-10 slices and place in a flat ovenproof dish. Sprinkle with honey and bake under the hot grill of the oven or in the preheated oven (electric oven: 225 °C/circulating air: 200 °C/gas: level 4) for 2-3 minutes.
Season salad with salt and pepper. Serve with the goat cheese.