Peel, wash and slice the potatoes. Wash the thyme, dab dry, put some aside for garnishing, remove remaining leaves. Mix potatoes with thyme, salt and 2 tablespoons of oil. Cover baking tray with baking paper. Spread potatoes on top.
Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 25-30 minutes. In the meantime, peel garlic and cut into fine sticks. Wash the meat and dab dry. Fry the pine nuts in a pan without fat until golden brown, set aside. Heat 2 tablespoons of oil in the pan, fry the steaks on each side for 3-4 minutes. Remove, season with salt and pepper and keep warm. Deglaze frying fat with hot broth. Add garlic, tangerine juice and honey, simmer for 1-2 minutes. Add vinegar, stir in sauce thickener. Season sauce with salt and pepper.
Remove, season with salt and pepper and keep warm. Deglaze frying fat with hot broth. Add garlic, tangerine juice and honey, simmer for 1-2 minutes. Add vinegar, stir in sauce thickener. Season sauce with salt and pepper. Arrange rump steaks with sauce and potatoes. Sprinkle with pine nuts and garnish with thyme