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Sirloin Steak and Chimichurri Butter

Sirloin Steak and Chimichurri Butter

with Handcut Chips and Tenderstem® Broccoli
Michael Steadman
Michael SteadmanUpdated on February 10, 2026
Calories
642 kcal
Protein
48.4g protein
Difficulty
Medium
Allergens:
  • Milk
Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
serving amount

150

Tenderstem® Broccoli

30

Unsalted Butter

(Contains: Milk)

1

Garlic Clove

2

21 Day Aged British Sirloin Steaks

1

Spring Onion

1

Lime

1

Chilli Flakes

450

Potatoes

Energy (kcal)642 kcal
Energy (kJ)2686 kJ
Fat32.1 g
of which saturates16.2 g
Carbohydrate46.9 g
of which sugars5.6 g
Protein48.4 g
Salt0.4 g
Always refer to the product label for the most accurate ingredient and allergen information.
Baking Tray
Zester
Aluminum Foil
Bowl
Grill Pan
Kitchen Shears
Lid

Instructions

Chop the Chips
1

Preheat your oven to 220°C/200°C fan/gas mark 7.
Remove the steaks and butter from your fridge to allow them to come up to room temperature.
Chop the potatoes lengthways into 1cm slices, then chop into 1cm wide chips (no need to peel). Pop onto a large baking tray. Drizzle with oil, season with salt and pepper then toss to coat. Spread out in a single layer. TIP: Use two baking trays if necessary.
When the oven is hot, bake on the top shelf until golden, 25-30 mins. Turn halfway through.

Prep Time
2

Meanwhile, pop the garlic (unpeeled) into a small piece of foil with a drizzle of oil and scrunch to enclose it.
Add the parcel to the chips' baking tray and roast until soft, 10-12 mins, then remove from the oven.
While everything roasts, trim and thinly slice the spring onion. Zest and halve the lime.
Halve any thick broccoli stems lengthways.

Make the Chimichurri Butter
3

Once softened, add the butter to a small bowl with the spring onion, lime zest and chilli flakes (careful, they're hot - add less if you'd prefer things milder). Use a fork to mash until well combined.
Once the garlic has roasted and cooled, cut the end with scissors, squeeze it out of the skin and mash into the butter. Set your chimichurri butter aside.
Heat a large frying pan on medium-high heat (no oil). Once hot, add the lime halves, segment-side down, and cook until charred, 3-4 mins. Set aside for serving.

Fry your Steaks
4

Wipe out the (now empty) frying pan and pop on high heat with a drizzle of oil. Season the steaks with salt and pepper.
Once hot, lay the steaks into the pan and fry until browned, 1 min on each side. Lower the heat slightly and cook for another 1-2 mins on each side if you want them medium-rare. TIP: Cook for 1-2 mins more if you like it more well done.
Once cooked, transfer to a plate and spread over the chimichurri butter. Loosely cover with foil, then allow to rest for a couple of mins. IMPORTANT: Wash your hands and equipment after handling raw meat. The steak is safe to eat when the outside is browned.

Bring on the Broccoli
5

While the steaks rest, pop the frying pan back on medium-high heat with a drizzle of oil if the pan is dry.
Once hot, add the Tenderstem® broccoli and stir-fry for 2-3 mins, then add a splash of water.
Pop a lid on the pan, or cover in foil, and cook until tender, a further 2-3 mins. Season with salt and pepper.

Slice and Serve
6

When ready to serve, slice the steaks widthways into 1cm slices and transfer to your plates. Spoon over any buttery juices from the resting plate.
Spoon over any buttery juices from the resting plate.
Serve with the chips, broccoli and a charred lime half alongside for squeezing over. Enjoy!

Customer reviews

Review summary

Updated on Feb 2026
  • Flavour: The chimichurri butter added a fresh, zesty twist to the steak; some found it delicious while others preferred traditional sauces.
  • Ease of prep: Many found the recipe straightforward to follow, with perfectly timed cooking instructions for the steak.
  • Suggestions: Consider reducing the lime zest in the butter for a milder flavour; try grilling the steak on the barbecue for extra taste.
  • Portions: Some felt the meal could be more filling; consider adding extra vegetables or increasing the steak portion.
AI-generated from customer reviews

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