Ingredients
Method
1.Place potatoes in a large saucepan. Cover with cold water and bring to boil. Reduce heat to moderate and simmer 10-12 minutes or until tender, adding beans for last 2 minutes of cooking time. Drain. Cut potatoes in half. Season vegetables with salt and pepper.
2.Spray a char-grill with oil; preheat to high. Add lamb, cook 3-4 minutes each side for medium or until cooked to your liking. Transfer to a plate. Cover with foil; rest 5 minutes.
3.Blend or process vinegar and yolks together until combined. With motor running, add hot butter in a slow, steady stream to let yolk mixture emulsify. Stir tarragon into mixture. Season with salt and pepper.
4.Spoon potato and beans onto serving plates. Top with lamb; drizzle with sauce. Serve at once.