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Cooking Blackstone filet mignon is the easiest way to get a steakhouse-quality steak at home — a deep, caramelized sear on the outside and a buttery, tender center, all in under 15 minutes of cook time. The flat-top griddle gives the entire surface of the steak full contact with the heat, so you get an even crust that's tough to match on a grill grate.

Blackstone Filet Mignon

5 from 1 vote
Author: Laurie Fleming
Prep Time: 10 minutes
Cook Time: 8 minutes
5 minutes
Total Time: 23 minutes
Servings: 2 Servings

Description

Tender, juicy Blackstone filet mignon with a perfect seared crust and a garlic-butter baste — restaurant-quality steak made on the griddle in under 15 minutes.

Ingredients 

  • 2 filet mignon steaks, about 1.5 inches thick, 6–8 oz each
  • 1 teaspoon kosher salt
  • 1/2 teaspoon freshly ground black pepper
  • 1 tablespoon avocado oil, or other high-smoke-point oil
  • 2 tablespoons butter
  • 2 cloves garlic, smashed (optional)
  • 1 sprig rosemary or thyme, optional

Instructions

  • Temper: Remove the steaks from the fridge 30–45 minutes before cooking to bring them to room temperature for even cooking.
  • Dry and season: Pat the steaks completely dry with paper towels, then season generously on all sides with salt and pepper.
  • Preheat: Heat the Blackstone griddle to high (450–500°F) for 8–10 minutes.
  • Oil: Spread a thin layer of avocado oil across the cooking surface.
  • Sear: Place the steaks on the hot griddle and sear, undisturbed, for 3–4 minutes until a brown crust forms. Flip once with tongs.
  • Baste: Add the butter, smashed garlic, and herbs beside the steaks. Spoon the melted garlic butter over the tops for the final 1–2 minutes.
  • Check temp: Use a thermometer — pull at 125°F for medium-rare or 135°F for medium (about 5°F below your final target).
  • Rest and serve: Rest the steaks 5 minutes, then serve whole or sliced with your favorite sides.

Equipment

  • Blackstone Griddle
  • Instant-read meat thermometer
  • Tongs

Notes

  • For the best crust, make sure the griddle is fully preheated and the steaks are patted dry.
  • Cooking times are for 1.5-inch steaks; adjust for thickness and use a thermometer to confirm doneness.
  • Swap butter for ghee to make it dairy-free.

Nutrition

Serving: 1ServingCalories: 168kcalCarbohydrates: 1gProtein: 0.4gFat: 18gSaturated Fat: 8gPolyunsaturated Fat: 1gMonounsaturated Fat: 8gTrans Fat: 0.5gCholesterol: 30mgSodium: 1253mgPotassium: 22mgFiber: 0.2gSugar: 0.04gVitamin A: 353IUVitamin C: 1mgCalcium: 12mgIron: 0.1mg