Roast Beef With Horseradish Remoulade

• 4 lbs top sirloin roast
• 1 tbsp butter
• 4 tbsp olive oil
• 4 large potatoes, sliced
• 6 tbsp mayonnaise
• 3 None gherkins, finely chopped
• 2 tbsp prepared horseradish
• 2 small onions, thinly sliced
• 5 tbsp chopped parsley

1. Preheat the oven to 425u0b0F. Season the beef with salt and pepper. Heat butter and 1 tbsp of the oil in large skillet on high heat. Cook the beef quickly on all sides to brown. Transfer to a roasting pan. Roast for 30 mins. Reduce the oven temperature to 350u0b0F. Roast for a further 50 mins or until cooked to desired doneness.
2. Cook the potatoes in boiling, salted water for 10 mins or until tender. Drain well.
3. For the horseradish remoulade, combine the mayonnaise, gherkins, horseradish, and salt and pepper to taste in a bowl.
4. Heat the remaining 3 tbsp oil in large skillet on medium-high heat. Cook the potatoes until golden, turning frequently. Add the onion and cook for a further 2 mins.
5. Transfer the beef to a platter and let stand for 20 mins. Season the parsley with plenty of black pepper and spread over the beef. Slice beef and serve with the potatoes and horseradish remoulade.

sirloin roast, butter, olive oil, potatoes, mayonnaise, horseradish, onions, parsley

Taken from recipes-plus.com/api/v2.0/recipes/28736 (may not work)