Steak with Peppercorn Sauce, Chunky Chips & Watercress Salad
By Morrisons
Published on 01 May 2026
Upgrade your next dinner for two with this restaurant-quality sirloin steak recipe. Learn how to cook the perfect steak at home, complete with a rich, homemade peppercorn sauce and a zesty watercress salad. By using a clever microwave-to-air-fryer hack for our chunky chips, you can enjoy a full gastropub experience in just 30 minutes. It’s the ultimate quick and easy steak dinner that doesn't skimp on flavour.Time and servings
30 minsTotal time
2Servings
10 minsPrep time
20 minsCooking time
Ingredients
- 2 Sirloin steaks
- 3-4 Jacket Potatoes
- 200g double cream
- 150g butter
- 140g Henderson's relish
- 80g fresh watercress
- 2 garlic cloves, crushed
- 3-4 sprigs fresh thyme
- 2 tbsp rice wine vinegar
- 1 tsp dijon mustard
- Selection of fresh herbs, a good handful
- 1 tbsp cracked black pepper, crushed
- 1 tbsp olive oil
- Salt, to taste
- Black pepper, to taste
Method
Step 1
Microwave the jacket potatoes for 8 minutes, cut them into chunky chips, and set them aside.Step 2
Season the steaks with salt and pepper before rubbing them with olive oil.Step 3
Place the steaks fat-side down in a hot frying pan to render and crisp the fat, then turn them onto their sides to sear until a dark crust forms.Step 4
Drain the collected beef fat from the pan over the chips and set them to cook in an oven or air fryer at 200°C for 6 to 8 minutes until golden.Step 5
Reduce the pan heat and add butter, thyme, and crushed garlic, moving the steaks constantly to coat them thoroughly.Step 6
Transfer the steaks to a tray and pour over the pan juices and aromatics to rest.Step 7
Blend a handful of watercress and assorted green herbs with a teaspoon of Dijon mustard, rice wine vinegar, and olive oil until smooth, adjusting with water or oil for your preferred consistency and seasoning with salt and pepper.Step 8
In the same frying pan, bring Henderson’s relish to a boil before stirring in the cream and an optional half teaspoon of mustard.Step 9
Add cracked black pepper gradually to taste, then return the steaks and their resting juices to the pan to sit for two minutes.Step 10
Serve the steak with the crispy chips and the remaining watercress tossed in a light coating of the herb dressing.