Capital Grille Porcini Rub Recipe

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Craving for your favorite Capital Grille steaks? The good news is now you can do this at home. Our Capital Grille porcini rub recipe will help you have that delicious crust on your steaks. 

This recipe is not based on any exact method used at Capital Grille. But you’ll surely enjoy the flavor and texture of Capital Grille’s steaks. The Capital Grille is an American steakhouse restaurant now serving delicious food at 59 locations in 20 states. 

Their porcini rub is what makes those steaks delectable. With our Capital Grille porcini rub recipe, it is easier than ever to have that great taste at your home for cheap.

Capital Grille Porcini Rub Recipe

What is Porcini Rub?

Rubs are usually a combination of dried spices and herbs commonly used to add additional flavor to meat. Porcini rub is dried and ground porcini mushrooms mixed with some other spices. It is sweet, salty, spicy, and smokey all at the same time. 

All of the ingredients work well together to give an irresistible entree for any special occasion. Capital Grille grinds porcini mushrooms to fine dust to use on their steaks.

This porcini rub gets perfectly mixed with anything and is easy to make and practical to use. 

Porcini rub adds a pleasant flavor and aroma of freshly ground porcini mushrooms to any dish. Apart from steaks, It also gives pasta, scallops, and roasts a very unique porcini taste

Porcini Rub Ingredients:

Are you also a fan of tender steaks cooked to juicy perfection at home? The key is a good dry rub. And porcini rub is what gives your steaks the needed burst of flavor. 

Capital Grille porcini rub is certainly one of the most flavorful porcini rubs out there for cooking steaks. There is no need for any pricey or fancy ingredients. Today I used only 8 basic and easily found ingredients in our copycat Capital Grille porcini rub recipe. 

Porcini Mushroom:

Porcini Mushrooms are one of the best edible varieties of mushrooms out there. It has an earthy and nutty flavor. The deepness of its flavor is what makes it a good fit for steak rubs. 1 cup dried porcini mushroom ground to a powder is used in our recipe to add that rich, sweet, and woodsy flavor. 

Kosher Salt:

Kosher salt is pure and clean salt without added iodine. It’s usually less dense than regular salt and used in rubs for its granular texture. It easily melts into and tenderizes the meat. ½ cup Kosher salt is used in our Capital Grille porcini rub recipe.

Black Pepper:

Black pepper is the one common ingredient used in almost all rubs and seasonings recipes, isn’t it? It has that inherent heat and rich taste that complements meat. The sharp aroma and bitter taste give any rub recipe the needed heat. 1 tablespoon of freshly ground Black pepper is used in the recipe.

Red Pepper:

Red pepper flakes are a combination of different types of chili peppers dried and crushed into a flaky texture. This fire-packed spice makes any ruby enough hot and flavorsome. 1 tablespoon red pepper flakes not only gives our rub a bright red color but also provides the right balance of spiciness.


Rubs usually contain a sweet ingredient to balance all the other stronger flavors. Also, it gives a caramel tone and flavor to the rub. But if you desperately want to cut sugar, you may skip this ingredient. Today I used 1 tablespoon of plain white sugar for simplicity.

Onion Flakes:

Onion flake is simply dried finely chopped onions. It is a healthier option to add richness and texture to your rub recipe. 4 teaspoons of dried onion flakes are used in the Capital Grille porcini rub recipe to add tenderness to steaks. 

Garlic Powder:

Garlic powder is a powerhouse of strong flavors that complement meat recipes. It has a unique aroma and spicy, pungent taste that makes it a good fit for rubs and sauces. 2 teaspoons of garlic powder is used in today’s recipe.

Dried Mustard:

Dried mustard is a common herb found in spice rubs, dressings, and other savory dishes. It is made with ground mustard seeds and has a slightly bitter flavor. You’ll need ½ teaspoon of dried mustard for this porcini rub recipe.

How To Make Capital Grille Porcini Rub:

Our Capital Grille porcini rub recipe is simple to make, and amazingly brings out a similar taste in homemade steaks like Capital Grille ones. This recipe guarantees a tender and juicy steak every time. With this porcini rub anyone can make great steaks. 

It’s definitely worth a try. Now that we know the ingredients let’s invent the recipe in easy steps:

Step 1:

Place dried porcini mushrooms into your grinder and grind until they are like fine dust. 

Step 2:

In a small bowl mix ground porcini mushrooms with other ingredients. Mix very well to have your Capital Grille porcini rub ready.

Step 3:

Place steak on a piece of paper. Rub into steaks generously on both sides. Allow to rest for at least 15 minutes until everything sticks well. Then you can go for the cooking step.

Capital Grille Porcini Rub Recipe

Capital Grille Porcini Rub Recipe

Copycat Capital Grille Porcini Rub is the perfect rub for tender, juicy homemade steaks. It’s an easy recipe filled with robust flavors and spices. Tag along!
Print Recipe Pin Recipe
Prep Time10 minutes
Total Time10 minutes
Servings10 People
AuthorNaomi Rogers


  • 1 Cup Dried and ground porcini mushroom
  • 1/2 Cup Kosher salt
  • 1 Tablespoon Black Pepper
  • 1 Tablespoon Red pepper flakes
  • 1 Tablespoon Sugar
  • 4 Teaspoons Onion flakes
  • 2 Teaspoons Garlic powder
  • 1/2 Teaspoon Dried mustard


  • Grind dried porcini mushroom to fine dust
  • Mix all other ingredients with it
  • Apply boldly on the steak and let sit for 15 minutes
  • Then put it on your preheated grill or oven and cook


  • If you’re using frozen steak, make sure to let it fully thaw before applying the rub.
  • Allow the ground porcini mushroom to sit for a few minutes in the grinder before opening the lid to avoid spice dust. 
  • Add a bit of olive oil before putting the rub. It helps the porcini rub to stick better.
  • Dried mushrooms can still be a little damp. After grinding, take out the large bits and smash them with your hands.
  • You can store the porcini rub in an airtight glass jar for up to 6 months.


Calories: 78kcal

Final Words:

Our Capital Grille porcini rub is very strong and fragrant that blends delectable, restaurant-like flavors into your homemade steaks. It makes steaks mouth-watering and a definite crowd-pleaser. Make your own porcini rub and use it on beef ribs, steaks, chicken, seafood, and even roasted vegetables.

Hope you’ve found my recipe easy enough to give it a try. Go for it bet it’ll never disappoint you. Good luck!

You May Also Like:

Traeger Poultry Rub Recipe

Corned Beef Rub Recipe

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