Spicy Steak and Watercress on a Roll

Step 1

Season beef generously with salt and pepper. Cook to medium rare in a pan, under a broiler or on a grill, about 4 minutes per side depending on thickness. Set aside to cool for at least 10 minutes. Slice thinly on a bias and set aside. Blot extraneous juice with paper towels.

Step 2

Make horseradish sauce: Put grated horseradish in a small bowl. Season with a good pinch of salt and pepper and a little sugar. Add sour cream and stir to combine.

Step 3

Split rolls and lay them cut side up on a work surface. Butter each piece lightly, then spread with 2 teaspoons horseradish sauce.

Step 4

Divide sliced meat among the 6 bottom roll pieces, then garnish with cornichons, jalapeño and watercress. Replace top pieces of rolls and serve.