The Mushroom Burger (Shroom Burger) from Shake Shack features a crispy, golden-fried portobello mushroom filled with melted cheese, nestled in a soft potato bun with fresh lettuce, tomato, and ShackSauce, offering a savory, juicy, and satisfying vegetarian delight.
Equipments
- Deep fryer
- Frying basket
- Mixing bowls
- Slotted spoon
- Baking sheet
- Parchment paper
- Tongs
- Knife
- Cutting board
- Grater (for cheese)
- Cheese shredder or slicer
- Spoon (for filling)
- Spatula
- Sauce bottle or bowl
- Plate or platter (for assembly)
Ingredients
- 2 large portobello mushroom caps
- 1 cup shredded mozzarella cheese
- 1 cup shredded cheddar cheese
- 1/2 cup all-purpose flour
- 2 large eggs
- 1 cup panko breadcrumbs
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- Vegetable oil (for frying)
- 2 potato burger buns
- 2 leaves green leaf lettuce
- 2 slices ripe tomato
- ShackSauce (mayonnaise, Dijon mustard, ketchup, dill pickle brine, paprika, garlic powder, cayenne pepper)
Ensure the portobello mushroom caps are large and firm to hold the melted mozzarella and cheddar cheese filling without falling apart during frying. Use panko breadcrumbs for a crispier texture that mimics Shake Shack's signature crunch. Maintaining proper seasoning with garlic powder, onion powder, salt, and black pepper enhances the overall flavor, complementing the savory mushroom and cheese blend. Vegetable oil should be heated to the right temperature for deep frying to achieve a golden, crispy exterior without absorbing excess oil. Your homemade Mushroom Burger (Shroom Burger) from Shake Shack copycat menu delivers a juicy, satisfying vegetarian option with the perfect balance of textures and flavors.
Instructions
- Clean the portobello mushroom caps and remove stems.
- Grate mozzarella and cheddar cheese; mix together.
- Carefully fill each mushroom cap with the cheese mixture.
- Press filled mushrooms gently to enclose the cheese.
- Set up breading station: bowl with flour, beaten eggs, and panko breadcrumbs mixed with garlic powder, onion powder, salt, and black pepper.
- Dredge filled mushrooms in flour, then dip in beaten eggs, then coat with seasoned panko.
- Preheat vegetable oil in deep fryer to 350°F (175°C).
- Place breaded mushrooms in the frying basket.
- Fry mushrooms until golden brown and crispy (about 2–3 minutes per side).
- Remove with a slotted spoon; drain on paper towel-lined baking sheet.
- Slice tomato; wash and dry lettuce leaves.
- Toast potato buns lightly.
- Assemble burger: spread ShackSauce on both sides of bun.
- Place lettuce and tomato slice on bottom bun.
- Add fried mushroom cap on top of vegetables.
- Cover with top bun.
- Serve immediately.
Substitution
The Mushroom Burger (Shroom Burger) from Shake Shack can be replicated by breading and frying portobello caps stuffed with a blend of mozzarella and cheddar cheese, served on a soft potato bun with fresh lettuce, tomato, and ShackSauce. You can substitute mozzarella and cheddar with any similarly melting cheeses like Monterey Jack or provolone for a different flavor profile. If deep frying is not an option, pan-frying the mushroom caps in a skillet with enough oil until golden and crispy works well as an alternative method. For a gluten-free version, replace all-purpose flour and panko breadcrumbs with gluten-free flour and crushed gluten-free crackers or breadcrumbs. Adjust seasoning in the ShackSauce to your taste, adding more cayenne or mustard if you prefer a spicier or tangier kick.
Tips
Ensure the mushroom caps are completely dry before breading to help the coating adhere properly, which prevents sogginess during frying. Maintain the oil temperature at a steady 350degF (175degC) to achieve a golden, crispy crust without absorbing excess oil. Use a slotted spoon to carefully remove the mushroom from the oil and place it on parchment paper to drain excess oil, preserving the crispy texture. You'll find that lightly toasting the potato bun will provide extra structure and prevent it from becoming soggy under the juicy, melted cheese-filled mushroom.
Nutritions
The Mushroom Burger from Shake Shack delivers a rich source of protein and calcium through its melted mozzarella and cheddar cheese filling. The portobello mushroom adds dietary fiber and antioxidants while keeping the calorie content moderate compared to traditional beef burgers. The crispy panko coating and deep-frying method contribute some added fat and calories, but the fresh lettuce and tomato provide essential vitamins and minerals. Your meal balances indulgent flavors with vegetarian nutrition, making it both satisfying and nutrient-rich.
Storage
To store your Mushroom Burger properly, wrap it tightly in aluminum foil or plastic wrap to maintain moisture and prevent the bun from drying out, then refrigerate for up to 2 days. If you plan on storing each component separately, keep the fried mushroom in an airtight container and the fresh vegetables in a separate container to preserve their texture. Reheat the mushroom in an oven or air fryer at 350degF (175degC) for a few minutes before assembly to retain its crispiness.
Variation or Alternatives
Swap portobello mushrooms with large cauliflower steaks for a different texture and lighter option while maintaining a crispy, juicy center. Substitute mozzarella and cheddar with a blend of gouda and pepper jack cheese to add smoky and spicy notes to Your burger. Instead of deep frying, bake the breaded mushrooms at 400degF (200degC) for 20 minutes to achieve a healthier, less oily result without compromising crispiness. Try spreading avocado mash on the bun in place of ShackSauce for a creamier, fresh flavor that complements the fried mushroom.
Allergies
The Mushroom Burger contains common allergens such as eggs, dairy from mozzarella and cheddar cheese, and gluten from the all-purpose flour and panko breadcrumbs. The ShackSauce includes mayonnaise, which typically contains eggs, and the potato bun may also contain wheat gluten, posing potential risks for those with egg, dairy, or gluten allergies. You should inform the restaurant of any allergies to ensure your meal is prepared safely.
Why this recipe?
The Mushroom Burger (Shroom Burger) from Shake Shack is celebrated for its perfectly crispy, golden-fried portobello mushroom filled with melted muenster and cheddar cheese, delivering a rich and savory flavor that satisfies both vegetarians and burger lovers. The combination of fresh lettuce, tomato, and ShackSauce complements the juicy mushroom, creating a balanced and indulgent bite. Its plant-based nature offers a delicious alternative to meat without compromising taste or texture. You'll find that making a copycat version at home is worth the effort, allowing you to recreate this iconic, flavorful experience anytime.