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sliced porterhouse steak on white plate with yassa onions

Reverse Seared Porterhouse Steak

Learn how to cook the perfect porterhouse steak with a deep, flavorful sear, juicy interior, and aromatic finish using simple techniques, high heat, and a cast iron pan.
Prep Time: 5 minutes
Cook Time: 35 minutes
Course: Main Course
Cuisine: American
Diet: Low Fat
Servings: 1 person
Calories: 1086kcal
Author: Marwin Brown

Ingredients

  • 1 Porterhouse Steak
  • 1 teaspoon Kosher Salt or Sea Salt
  • 1 teaspoon Coarse Black Pepper
  • 1 tablespoon Oil
  • 2 sprigs Fresh Thyme optional for basting
  • 2 tablespoon Butter optional for basting

Instructions

Bring Steak to Room Temp

  • Take your Porterhouse out of the fridge 30–60 minutes before cooking. A room-temp steak sears better and cooks more evenly.

Pat it Dry

  • Use paper towels to blot the steak dry—this is key to getting that crusty, golden-brown sear. Moisture is the enemy of browning.

Season Generously

  • Season all sides liberally with kosher salt and freshly ground black pepper. Do it right before cooking to keep the surface dry.
    raw porterhouse steak on tray

Preheat Oven to 250 degrees

  • Place steak on a baking sheet lined with metal grate. Bake in the oven for 25-30 minutes until internal temperature is 130-134 degrees F)

Preheat Cast Iron or Heavy Skillet

  • Get a cast iron pan screaming hot—medium-high to high heat. Let it heat for 5–7 minutes. You want it just below smoking.

Sear the Steak

  • Add a touch of high smoke point oil (like ghee, canola or avocado oil). Carefully place the steak in the pan and don’t move it. Sear for 1-2 minutes per side to develop that deep crust. Use tongs to sear the edges, too.
    porterhouse steak cooking in cast iron skillet

Optional Step: Baste with Butter & Herbs

  • After flipping the steak, add 2 tablespoons of butter, a few sprigs of thyme or rosemary, and a couple smashed garlic cloves to the pan. Tilt the pan and spoon the sizzling butter over the steak for 1–2 minutes.

Rest the Steak

  • Transfer steak to a cutting board and let it rest 5–10 minutes before slicing. This locks in the juices and keeps the meat tender.
    cooked porterhouse steak on tray with yassa onions

Video

Nutrition

Calories: 1086kcal | Carbohydrates: 2g | Protein: 71g | Fat: 87g | Saturated Fat: 36g | Polyunsaturated Fat: 7g | Monounsaturated Fat: 37g | Trans Fat: 1g | Cholesterol: 251mg | Sodium: 2690mg | Potassium: 1097mg | Fiber: 1g | Sugar: 0.03g | Vitamin A: 806IU | Vitamin C: 3mg | Calcium: 46mg | Iron: 7mg
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