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High-Protein Mains American Score: 5.0 / 5 (0 Reviews) • Test Kitchen Verified

Cast-Iron Pan-Seared Prime Ribeye Steak with Herb Butter

Thick-cut USDA Prime ribeye seared in screaming-hot cast iron to an edge-to-edge medium-rare, basted with foaming European butter, smashed garlic, and fresh garden rosemary.

Prep Time
10 mins
Cook Time
8 mins
Total Time
18 mins
Calories
640 kcal
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Cast-Iron Pan-Seared Prime Ribeye Steak with Herb Butter
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2 servings

Ingredients

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  • 1 large USDA Prime bone-in ribeye steak (16 oz / 450g), 1.5-inch thick
  • 1 ½ tsp coarse kosher salt (6g)
  • 1 tsp coarsely cracked black peppercorns (3g)
  • 1 tbsp avocado oil (15ml)
  • 3 tbsp unsalted European butter (42g)
  • 3 cloves fresh garlic, smashed lightly (9g)
  • 2 sprigs fresh rosemary (4g)

Step-by-Step Instructions

1

Dry and Season

Pat the steak bone-dry with paper towels and season generously with coarse kosher salt and cracked black pepper 45 minutes ahead.

2

High Heat Sear

Heat a 12-inch cast-iron skillet over high heat until smoking lightly. Add avocado oil and sear the ribeye for 2 to 3 minutes undisturbed until deep mahogany crust forms.

3

Flip and Butter-Baste

Flip steak. Reduce heat to medium, add butter, garlic, and rosemary sprigs. Tilt the pan and continuously spoon foaming herb butter over the steak for 2 minutes.

4

Rest on Wire Rack

Transfer steak to an elevated wire cooling rack when internal temp hits 125°F (52°C). Rest for 8 minutes before slicing.

Sensory Doneness Verification

Visual: Deep mahogany-brown caramelized crust with no gray overcooked band; glossy herb butter sheen. Auditory: Screaming sizzle when meat touches iron, softening to quiet butter foam. Aroma: Intensely savory roasted beef fat, nutty browned butter, and resinous woodsy rosemary. Tactile: Meat yields gently with tender springiness when pressed; succulent juices flow easily.

Troubleshooting & Testing Notes

Question: Why did the butter burn during basting?

Lower heat to medium before dropping the cold butter, garlic, and rosemary into the pan.

Nutrition Facts

Calculated per 1 serving

Calories 640 kcal
Protein 48g
Total Fat 50g
Carbohydrates 1g
Sodium 620mg

Recommended Equipment

  • 12-inch Cast Iron Skillet
  • Instant-Read Probe Thermometer
  • Wire Cooling Rack

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