Steak sandwiches are one of my favorite meals, with rich, hearty steak and all the fixings. This Blackstone Steak Sandwich recipe brings the classic up to a whole new level. It's an ideal recipe for anyone who loves hearty, flavorful sandwiches with lots of protein!

Blackstone Steak Sandwich
I can't get over how good this sandwich is. The steak, seasoned with our OWYD SPG, is the star of the show. I like to cook these on the griddle, but they are just as good made indoors on the stovetop, too.
The key is to maintain medium-high heat for a good sear on the meat and a golden-brown crust on the buns. Cooking time can be adjusted based on steak thickness and the temperature you like your steak to finish at. Use the guide below and a high quality thermometer to keep an eye on things.
| STEAK TEMPERATURES | PULL | FINAL |
| RARE | 115° | 120° |
| MID-RARE | 125° | 130° |
| MEDIUM | 130° | 135° |
| MEDIUM-WELL | 135° | 140° |
| WELL | 140° | 145° |
The sandwich pairs well with a variety of sides, such as salads, fries, or roasted vegetables, making it easy to cater to different tastes and dietary preferences.

This recipe is a must-try for anyone who enjoys a good steak or a great sandwich. Its straightforward preparation and the flexibility to modify and adapt to different cooking equipment and ingredients make it a versatile and appealing option for many meals.
Make it keto
For those looking for a keto option, keto buns or lettuce wraps can be substituted for the hamburger buns, or you can omit the “sandwich” portion of this completely and serve it as is.
Why You'll Love This Recipe
- Rich and Flavorful: The combination of seasoned steak and smoked Gruyère is perfect!
- Creamy Aioli Kick: The horseradish aioli adds a creamy, spicy twist that complements the steak perfectly.
- Customizable: Adjust the amount of horseradish in the aioli to suit your spice preference.
- Versatile Meal: Perfect for a weekend lunch, a casual dinner, or a special occasion.
- Great for Grilling: An excellent recipe to make the most of your Blackstone griddle.
More Blackstone Recipes here!

Recipe Shopping List
Wondering if you have to hit the store? Here's the list of items you'll need to make this recipe. For specific amounts, please refer to the printable recipe card at the bottom of the post.
Steak & Seasoning
- Steak – Ribeye, NY strip, or sirloin all work great. Choose something well-marbled.
- Salt, Black Pepper, Onion Powder, Granulated Garlic – Basic seasoning blend that complements the beef without overpowering it. Use our OWYD SPG Rub!
Sandwich
- Hamburger Buns – Choose sturdy buns that toast well and hold up to the juicy filling.
- Butter – For toasting buns and sautéing the onions.
- Sliced Onions – Cook down to sweet, golden perfection on the griddle.
- Smoked Gruyère Cheese – Melty, nutty, and bold. Swap in provolone or Swiss if needed.
Horseradish Aioli
- Horseradish – Adds a spicy bite that cuts through the richness.
- Mayonnaise – Kewpie or Duke’s for extra richness and flavor.
- Garlic Powder – Rounds out the aioli with a savory kick.
60+ Incredible Blackstone Recipes

How To Make This Recipe
This is just the overview so you can see what you're actually getting into here. When you are cooking, you'll want to use the full recipe at the bottom of the page.
- Preheat Your Blackstone – Set to medium-high heat.
- Season The Steak – Mix salt, pepper, onion powder, and garlic. Coat the steak evenly.
- Toast The Buns – Butter each bun and place butter-side down on the griddle until golden. Set aside.
- Sauté The Onions – Add remaining butter and cook onions on the griddle, stirring often, until soft and caramelized (about 5 minutes).
- Grill The Steak – Cook 3–4 minutes per side or until it reaches your preferred doneness. Remove and rest for 5 minutes.
- Make The Aioli – Whisk mayo, horseradish, and garlic powder in a small bowl.
- Slice And Assemble – Slice steak thinly against the grain. Layer steak, onions, cheese, and aioli on toasted buns.
- Melt (Optional) – Place the steak with cheese under a broiler for 2–3 minutes before building the sandwich, if you want extra melt.
Try our Traeger Steak Sandwich too!

Recipe FAQ
Steak will be at peak quality right after it is cooked, but if you would like to take this sandwich for lunches at work or school, you can prepare the individual pieces in advance. Cook the steak and onions, and prepare the aioli a day ahead. Reheat the steak and onions before assembling the sandwiches.
Store the components separately in airtight containers. Reheat the steak and onions gently in a pan, the microwave, or an air fryer. Assemble the sandwiches fresh.
Yes, feel free to experiment with other cheeses like cheddar or provolone for a different flavor profile.
Homemade Caesar Salad Recipe

Serve This With

More Sandwich Recipes
- Pulled Lamb Gyro Sandwich
- Prime Rib Pinwheel Sandwich
- Crispy Fish Sandwich
- Barbecue Chicken Sandwich
- Hot Roast Beef Sandwich
- Smoked Chicken Salad Sandwich
- Smoked Shredded Beef Dip Sandwich
- Hot Roast Beef Sandwich Boats
- Salmon Sandwich
- Chopped Italian Sandwich
- Blackened Fish Sandwich


Blackstone Steak Sandwich
This easy Steak Sandwich recipe is perfect for an easy dinner or a hearty weekend lunch! It cooks quickly and tastes delicious.
Ingredients
Steak & Seasoning
- 32 ounces steak
- 1 teaspoon salt
- 1 teaspoon black pepper
- 1 teaspoon onion powder
- 1 teaspoon granulated garlic
Sandwich
- 4 hamburger buns
- 4 tablespoons butter
- 2 medium onions, sliced
- 8 ounces smoked Gruyère cheese
Horseradish Aioli
- 2 teaspoons horseradish
- 1/2 cup mayo (I use Kewpie or Duke's)
- 1/2 teaspoon garlic powder
Instructions
- Preheat your Blackstone over medium-high heat.
- Mix 1 teaspoon each of salt, black pepper, onion powder, and granulated garlic.
- Butter all the hamburger buns with 2-3 tablespoons of butter. Place butter-side down on the griddle and let brown. Remove and set aside once they are toasted.
- Put the remaining butter down on the griddle and place the sliced onions on the butter. Sauté for 5 minutes, flipping frequently.
- Put the steaks on the preheated griddle and cook for 3-4 minutes per side.
- While the steaks are cooking, whisk together the aioli ingredients.
- Once the steaks are cooked to your liking, remove them from the griddle and rest for 5 minutes.
- After resting, slice against the grain and build your sandwiches with the steak, cheese, sauteed onions, and horseradish aioli.
- If desired, you can melt the cheese on the sandwiches by briefly putting the sliced steak with cheese on top on a baking sheet under a broiler for 2-3 minutes and then building the sandwiches.
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Nutrition Information:
Yield: 4 Serving Size: 1Amount Per Serving: Calories: 1310Total Fat: 94gSaturated Fat: 38gTrans Fat: 1gUnsaturated Fat: 47gCholesterol: 324mgSodium: 1560mgCarbohydrates: 30gFiber: 2gSugar: 6gProtein: 82g
Nutrition data provided here is only an estimate. If you are tracking these things for medical purposes please consult an outside, trusted source. Thanks!
