Steak Sandwiches With Béarnaise Sauce

• 2 None beef sirloin steaks
• 2 tbsp olive oil
• None None lettuce, sliced cooked beet, sliced cucumber, and sliced tomatoes, to serve
• 1/4 cup white wine vinegar
• 1/2 None onion, chopped
• 1 sprig fresh rosemary
• 2 None large egg yolks
• 12 tbsp butter, melted
• 4 None soft bread rolls
• None None French fries, to serve

1. Heat a large frying pan over high heat. Brush beef with oil and season. Sear on both sides until medium rare, or until cooked to your liking. Let rest for 5 mins then slice into strips.
2. Meanwhile, for the Bearnaise sauce, simmer vinegar, onion and rosemary until reduced to about 2 tbsp. Strain into a heatproof bowl along with egg yolks. Whisk over a double boiler until foamy and pale. Gradually whisk in melted butter until thick and creamy.
3. Stuff rolls with steak, lettuce, beet, cucumber and tomatoes. Drizzle Bearnaise sauce over top and season. Serve with French fries.

beef sirloin steaks, olive oil, cucumber, white wine vinegar, onion, rosemary, egg yolks, butter, bread rolls

Taken from recipes-plus.com/api/v2.0/recipes/32908 (may not work)