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21 Day Aged Rump Steak and Truffled Parmesan Sauce

21 Day Aged Rump Steak and Truffled Parmesan Sauce

with Chive Butter Potatoes and Roasted Vegetable Medley
Recipe Development Team
Recipe Development TeamUpdated on November 19, 2025
Calories
742 kcal
Protein
46.5g protein
Total
25 minutes
Difficulty
Medium
Allergens:
  • Milk
Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
serving amount

2 unit(s)

21 Day Aged British Rump Steaks

350 grams

Salad Potatoes

1 bunch(es)

Chives

200 grams

Asparagus

80 grams

Tenderstem® Broccoli

125 grams

Baby Plum Tomatoes

10 grams

Chicken Stock Paste

75 grams

Creme Fraiche

(Contains: Milk)

20 grams

Parmigiano Reggiano

(Contains: Milk)

1 sachet(s)

Truffle Zest

20 grams

Unsalted Butter

(Contains: Milk)

Not included in your delivery

100 milliliter(s)

Water for the Sauce

Energy (kJ)3106 kJ
Energy (kcal)742 kcal
Fat45 g
of which saturates24 g
Carbohydrate43.3 g
of which sugars8.2 g
Dietary Fibre8 g
Protein46.5 g
Cholesterol114 mg
Salt2.4 g
Potassium1624.1 mg
Calcium43.5 mg
Iron5.8 mg
Due to the different suppliers we purchase our products from, nutritional facts per meal can vary from the website to what is received in the delivered box, depending on your region.
Chopping Board
Medium Saucepan
Knife
Baking Tray
Large Frying Pan
Aluminum Foil
Colander

Instructions

1

a) Preheat your oven to 220°C/200°C fan/gas mark 7. Boil a half-full kettle for the potatoes.

b) Remove the steaks from your fridge to allow them to come up to room temperature.

c) While the water comes to the boil, halve the salad potatoes (no need to peel).

d) Pour the boiled water into a saucepan with 0.5 tsp salt and bring back to the boil. Add the potatoes to the water and cook until you can easily slip a knife through, 15-20 mins.

2

a) Meanwhile, finely chop the chives (use scissors if easier). 

b) Trim the bottom 2cm from the asparagus and discard. Halve any thick Tenderstem® broccoli stems lengthways.

c) Pop the asparagus, broccoli and tomatoes onto a large baking tray. Drizzle with oil, season with salt and pepper, then toss to coat. Spread out in a single layer.

d) When the oven is hot, roast the veg on the middle shelf until tender, 12-15.

3

a) Meanwhile, season the steaks with salt and pepper.

b) Heat a drizzle of oil in a large frying pan on medium-high heat. TIP: Rump steaks naturally vary in shape, so adjust the following timings depending on how you like yours cooked.

c) Once very hot, lay the steaks into the pan and fry until browned and medium-rare, about 5 mins. Turn halfway through. TIP: Cook each side for 1 min more if you like it more well done.

d) Once cooked, transfer to a board, cover with foil and 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 browned on the outside.

4

a) Meanwhile, clean out the (now empty) frying pan and pop it back on medium-high heat.

b) Once hot, pour in the water for the sauce (see pantry for amount) and chicken stock paste. Bring to the boil, then lower the heat and simmer until the water has reduced by about a third, 2-3 mins. 

c) Once the liquid has reduced, stir in the creme fraiche and simmer until thickened, 1-2 mins. 

d) Remove from the heat and stir in the Parmigiano Reggiano and truffle zest. Add a splash of water to loosen if needed. Cover to keep warm.  

5

a) Once the potatoes are cooked, drain in a colander and return to the pan, off the heat. 

b) Add the butter and half the chives. Season with salt and pepper, then toss the potatoes in the chive butter. 

6

a) When everything's ready, thinly cut the steaks widthways into 1cm thick slices and transfer to your plates.

b) Spoon over the truffled parmesan sauce (reheat first if needed) and sprinkle over the remaining chives. 

c) Serve the chive butter potatoes and roasted veg medley alongside. 

Enjoy! 

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