Ingredients
Method
1.Place potato in a saucepan. Cover with cold water. Bring to the boil. Boil 10 minutes, or until tender. Drain. Cool slightly. Slice thickly.
2.Meanwhile, heat a char-grill pan over high heat. Combine paprika, half the oil and half the thyme in a bowl. Season. Rub over beef to coat evenly. Char-grill beef 4 minutes each side for medium-rare, or until cooked to your liking. Transfer to a heatproof board. Rest 5 minutes. Slice thinly.
3.Heat remaining oil and butter in a frying pan over high heat. Add onion, sliced potato and remaining thyme. Cook, stirring, 10 minutes, or until golden. Season.
4.Combine mayonnaise and horseradish in a bowl. Divide beef and potato mixture among serving plates. Top with horseradish mayonnaise. Serve with beans.
You could use dried thyme leaves instead of fresh; reduce quantity to 1/2 teaspoon. Budget beef rump, also known as smart buy rump, is a cheap alternative to rump steak.
Note