Most steak dinners are assembled rather than planned. Something gets bought, something gets grilled, some sides appear alongside it. That works perfectly well for a Tuesday. It does not work when the centrepiece is an expensive piece of aged beef and there are people coming over who you would like to impress.

A dry aged steak asks for a different approach, because its flavour is assertive enough that everything around it has to be chosen rather than assumed.

Start by deciding how many pieces of meat

The instinct is one steak per person. For a dinner built around aged beef, that is usually the wrong call.

Large shared cuts work far better. A tomahawk, a bone-in ribeye or a thick T-bone sold as a dry aged steak carved at the table gives you a better result for several reasons. Thicker cuts are more forgiving, because the ratio of surface to interior gives you room to build a proper crust without overcooking. Carving lets you serve different levels of doneness from the same piece. And a single large cut is genuinely easier to manage than four separate steaks all needing attention at once.

For portioning, plan on roughly 300 to 350 grams of bone-in weight per person, or 200 to 250 grams boneless. Aged beef is rich, and people tend to eat slightly less of it than they expect to.

Choose the ageing duration for your guests

This is the decision people skip, and it matters more than which cut you buy.

• A 30 day age is broadly appealing. Improved tenderness, clean concentrated beef flavour, nothing anyone will find strange

• A 45 to 60 day age has clear nutty and cheese-like character. Excellent for people who are interested in food and will notice

• A 90 day age or longer is a distinctive, funky, blue cheese adjacent experience. Wonderful for the right person and genuinely off-putting for the wrong one

If you do not know your guests' palates well, stay under 60 days. Serving a 100 day steak to someone expecting a normal steak is a way to waste both the beef and the evening.

Build the menu backwards from the beef

Aged beef is a big flavour. The rest of the meal should give it space rather than compete.

Starters should be light and sharp. Something acidic resets the palate: a citrus dressed salad, oysters, thinly sliced fennel, a few olives. Avoid anything creamy, cheesy or heavily seasoned, because it dulls the palate before the main event and duplicates the savoury notes the beef will deliver.

Sides work best when they contrast rather than echo:

• Something green with acidity, such as watercress or rocket with a lemon dressing

• Something starchy but restrained, like plain roast potatoes or a simple mash without a great deal of cheese

• Something with a bit of bitterness, such as charred broccolini or grilled radicchio

• Roasted mushrooms, which are the exception to the rule about not doubling up, because they amplify the savoury notes in a way that works

What to avoid: heavy blue cheese sauces, aggressive barbecue glazes, chimichurri loaded with chilli, anything that will bury a flavour you have paid a premium for. If you want a sauce, a simple pan reduction or a spoonful of good butter with herbs is plenty.

Dessert should be light. Aged beef is rich and people will be full. Fruit, sorbet or something citrus based is a better ending than a chocolate torte.

Drinks

Aged beef pairs with wines that have enough structure to stand up to it. Cabernet Sauvignon, Syrah and Bordeaux blends all work, and Hawke's Bay produces excellent examples of all three. Pinot Noir can work with shorter ages but tends to get overwhelmed past 45 days.

If beer is more your thing, a dark ale, a porter or a well made amber lager handles aged beef better than a light lager will. The maltiness echoes the crust.

Timing the cook

This is where dinners go wrong, because a thick aged steak takes longer than people plan for and cannot be rushed at the end.

A workable timeline for a large shared cut:

• Two to three hours before serving, take the beef out of the fridge, pat the surface completely dry and salt it generously. Leave it uncovered on a rack in a cool spot

• Around 90 minutes before, get everything else prepared so you are not chopping while the beef is cooking

• Around 60 to 75 minutes before, start the beef low, either in a 110 degree oven or on the cool side of a covered barbecue, with a probe thermometer in the thickest part

• Pull it at about 10 degrees below your target, so roughly 45 degrees for rare, 48 for medium rare

• Rest it for 15 minutes while you get the pan or grill screaming hot and finish the sides

• Sear hard and fast, one to two minutes a side, until the crust is deep brown

• Rest another 5 to 10 minutes, then carve against the grain and serve immediately on warmed plates

The reverse sear approach matters particularly with aged beef. Because it holds less moisture, going straight onto high heat browns the exterior well before the centre is ready, and you end up with a grey band under the crust.

Small details that make a difference

Warm the plates. Aged beef served on cold plates loses its edge within a minute.

Have a sharp carving knife and a board with a moat for juices. Serve the juices over the carved slices.

Season the carved surfaces with a little flaky salt just before serving. It makes a noticeable difference.

Serve the bone to someone who will appreciate it, and do not be precious about people picking it up.

Keep it simple

The most common mistake with an expensive steak is doing too much to it. Salt, heat, rest, carve. The reason the beef cost what it did is that months of controlled ageing built a flavour into it. The job at dinner is to get out of the way.

Matangi Prime Meat's dry aged range runs from 30 to 100 days on its own grass fed Angus, with tomahawks, cowboy steaks, T-bones, sirloin and scotch fillet available as shared cuts.