Before you start
What this method is trying to achieve
Sirloin is leaner than ribeye, so it benefits from a hot, efficient sear rather than a long pan cook. Dry the steak, use a fully heated skillet, stop once the safe center is reached, rest, and slice across the grain if serving in strips.
Success looks like
Know the target before you cook
The steak should be browned outside, juicy rather than chalky inside, and easy to chew when sliced thinly across the grain.
Ingredients
What you need
Main
- 900 g boneless sirloin steak, about 1 to 1 1/4 inches thick
- 1.5 tsp kosher salt
- 1 tsp black pepper
- 1 tbsp olive oil
Finish
- 2 tbsp unsalted butter
- 1 small yellow onion, thinly sliced — optional pan accompaniment
Method
Cook by the cues, not just the clock
Prepare
Pat the sirloin dry and season both sides with salt and pepper.
Heat the skillet
Heat a heavy skillet over medium-high to high heat until fully hot, then add the oil.
Sear
Cook the steak without crowding, turning once after a strong crust forms.
Check doneness
Continue only until the thickest part reaches at least 145°F / 62.8°C. Add butter near the end if desired.
Rest and slice
Rest at least 3 minutes, then slice about 1/4 inch thick across the grain.
Critical checkpoints
Stop here and check
Before pan: dry exterior?
The surface looks matte rather than glossy with liquid.Pat dry again before adding the steak to the hot pan.
During sear: browning before liquid pooling?
A brown crust develops while the pan stays mostly free of watery juices.Raise effective heat or reduce pan load if liquid begins steaming around the steak.
Before slicing: safe and rested?
The center reaches at least 145°F / 62.8°C and rests for at least 3 minutes.Finish gently if low; do not keep searing a steak that is already at the safe endpoint.
If yours looks different
Route the failure before changing the recipe
After cooking
Storage, reheating & substitutions
Storage
Refrigerate leftovers in a covered container for up to 4 days.
Reheating
Reheat gently and briefly, preferably covered with a spoonful of pan juices.
Substitutions
New York strip can replace sirloin; very thin steaks need shorter pan time.
Evidence
Sources & methodology
Technical claims and method decisions are tied to sources. Recipe-specific advice is not presented as a universal food-science law.
- Pan-Seared Steak and OnionsFood Network
Food Network pan-sears a boneless sirloin, then serves it in thin slices with the accumulated steak juices.
publisherPassage verified - Safe Minimum Internal Temperature ChartUSDA Food Safety and Inspection Service
USDA FSIS lists 145°F / 62.8°C followed by a 3-minute rest as the safe minimum for whole beef steaks, chops and roasts.
governmentPassage verified