Beef
5:00
Steak School: Boston Sirloin Steak
A Steak School breakdown of the underrated Boston sirloin — a beefy top sirloin butt cut seasoned simply and seared hot and fast to medium-rare.
View recipe →A steakhouse-classic Delmonico reverse-seared on the grill with Unreal Pepper rub — low and slow to medium-rare, then finished hot for a golden crust.
Watch the full cook on YouTube
| Stage | Temp | What it means |
|---|---|---|
| Off indirect | 115–120°F / 46–49°C | 10–15°F below target. The sear adds the rest. |
| Final | 130–135°F / 54–57°C | Medium-rare, and right for every cut the Delmonico name covers. |
| Chuck-eye version | Up to 140°F / 60°C | If yours is a chuck eye it has more fat and is a little more forgiving. |
| Rest | 5–10 minutes | Less than a hard-seared steak needs, but still needed. |
Cooked Delmonico keeps 3–4 days refrigerated. Keep it whole and unsliced so it holds moisture, and reheat gently at low temperature if you must — a reverse-seared steak reheats better than most because it was never shocked with heat in the first place. Cold slices on a sandwich are the low-effort option and lose nothing.
Raw, it freezes for 6–12 months wrapped airtight. If it is a chuck-eye style Delmonico, it freezes particularly well because it carries a good amount of fat; thaw overnight in the fridge and pat dry before seasoning.
There is no single answer, and any source that gives you one is oversimplifying. The name comes from Delmonico's restaurant in 19th-century New York and has been applied over the years to boneless ribeye, chuck eye, top sirloin and strip steaks. Today it depends entirely on your butcher, so it is worth asking which cut you are getting.
130–135°F for medium-rare, which suits every cut the name gets applied to. If yours is a chuck-eye Delmonico it is a little more forgiving thanks to the fat; if it is a sirloin-style one, treat 135°F as a hard ceiling.
You cook the steak gently over indirect heat until it is nearly at target, then sear it hard at the end. It gives an evenly pink interior instead of the grey band you get searing from raw, and it is especially suited to thick steaks — which is what a Delmonico usually is, whichever cut it turns out to be.
Less than a hard-seared one, but yes — 5–10 minutes. The gentle phase already distributes the juices fairly evenly, which is one of the method's advantages, but the final high-heat sear still drives moisture toward the centre and it needs a moment to settle.
You cook the steak gently over indirect heat until it is nearly at target, then sear it hard at the end. It gives an evenly pink interior instead of the grey band you get searing from raw, and it suits thick steaks — which is what a Delmonico usually is, whichever cut it turns out to be.
Less than a hard-seared one, but yes — 5–10 minutes. The gentle phase already distributes the juices fairly evenly, which is one of the method's advantages, but the final high-heat sear still drives moisture toward the centre and it needs a moment to settle.
No 500-word life story — just the good-to-know stuff on what’s actually in this cook. Here’s the rundown on every real ingredient, health and nutrition wise.
General nutrition info only, not medical or dietary advice — portions, brands and add-ons change the numbers.