Serves 4
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  1. Preheat the grill to a high heat.
  2. In a small bowl, combine the horseradish with the mayonnaise and season with salt and black pepper.
  3. Spread the horseradish mayo on both sides of each bap. Divide the onions between the four top halves of the baps and spread evenly.
  4. Line the bottom buns with rocket and top with the roast beef. Add a slice of Cheddar on top of each one and melt under the grill for 2-3 minutes.
  5. Sandwich together with the top halves and serve with the cream of caramelised onion soup.

Nutrition Facts

Per serving: 425 kcals, 11g fat (4g saturated), 49.6g carbs, 16.1g sugars, 39.5g protein, 6.6g fibre, 0.642g sodium

These baps are a fantastic accompaniment to onion soup for a hearty meal