Portobello Burger with Thousand Island Sauce Recipe
This Portobello Burger with Thousand Island Sauce is a satisfying, flavorful alternative to traditional burgers. Juicy, meaty portobello mushrooms are marinated and grilled to perfection, then topped with a creamy, tangy Thousand Island sauce. Perfect for vegetarians or anyone looking for a lighter yet indulgent burger option!
Enjoy the rich, smoky flavor of grilled portobello mushrooms paired with the creamy, tangy goodness of Thousand Island sauce. This burger is hearty, packed with flavor, and feels indulgent without being heavy.
This recipe is easy, customizable, and a delicious way to incorporate more plant-based meals into your diet. The portobello mushrooms offer a satisfying umami flavor, while the homemade Thousand Island sauce adds a gourmet touch.
Tools You’ll Need
- Grill or grill pan
- Mixing bowls
- Basting brush
- Small whisk or fork
Ingredients
For the Portobello Burgers:
- 4 large portobello mushroom caps
- 3 tablespoons olive oil
- 2 tablespoons balsamic vinegar
- 1 teaspoon soy sauce
- 1/2 teaspoon garlic powder
- 1/2 teaspoon smoked paprika
- Salt and black pepper, to taste
- 4 burger buns (toasted)
- Lettuce, tomato slices, and red onion (for toppings)
For the Thousand Island Sauce:
- 1/3 cup mayonnaise
- 2 tablespoons ketchup
- 1 tablespoon sweet pickle relish
- 1 teaspoon white vinegar
- 1/4 teaspoon onion powder
- Salt and black pepper, to taste
Instructions
1. Prepare the Mushrooms:
Gently clean the portobello mushroom caps with a damp paper towel. Remove the stems and scrape out the gills with a spoon if desired (optional for a cleaner look and milder flavor).
2. Make the Marinade:
In a bowl, whisk together olive oil, balsamic vinegar, soy sauce, garlic powder, smoked paprika, salt, and pepper. Brush the mixture generously onto both sides of the mushroom caps.
3. Grill the Mushrooms:
Preheat your grill or grill pan to medium heat. Grill the mushrooms for 4-5 minutes per side until tender and slightly charred.
4. Prepare the Thousand Island Sauce:
In a small bowl, mix mayonnaise, ketchup, sweet pickle relish, white vinegar, onion powder, salt, and pepper. Stir until smooth and set aside.
5. Assemble the Burgers:
Place each grilled portobello mushroom cap on the bottom half of a toasted bun. Add lettuce, tomato slices, and red onion as desired. Generously spread Thousand Island sauce on the top half of the bun, then assemble the burger.
6. Serve:
Serve the burgers immediately with your favorite sides like fries, sweet potato wedges, or a fresh salad.
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Portobello Burger with Thousand Island Sauce Recipe
Equipment
- Grill or grill pan
- Mixing bowls
- Basting brush
- Small whisk or fork
Ingredients
- For the Portobello Burgers:
- 4 large portobello mushroom caps
- 3 tablespoons olive oil
- 2 tablespoons balsamic vinegar
- 1 teaspoon soy sauce
- 1/2 teaspoon garlic powder
- 1/2 teaspoon smoked paprika
- Salt and black pepper to taste
- 4 burger buns toasted
- Lettuce tomato slices, and red onion (for toppings)
- For the Thousand Island Sauce:
- 1/3 cup mayonnaise
- 2 tablespoons ketchup
- 1 tablespoon sweet pickle relish
- 1 teaspoon white vinegar
- 1/4 teaspoon onion powder
- Salt and black pepper to taste
Instructions
- Prepare the Mushrooms:
- Gently clean the portobello mushroom caps with a damp paper towel. Remove the stems and scrape out the gills with a spoon if desired (optional for a cleaner look and milder flavor).
- Make the Marinade:
- In a bowl, whisk together olive oil, balsamic vinegar, soy sauce, garlic powder, smoked paprika, salt, and pepper. Brush the mixture generously onto both sides of the mushroom caps.
- Grill the Mushrooms:
- Preheat your grill or grill pan to medium heat. Grill the mushrooms for 4-5 minutes per side until tender and slightly charred.
- Prepare the Thousand Island Sauce:
- In a small bowl, mix mayonnaise, ketchup, sweet pickle relish, white vinegar, onion powder, salt, and pepper. Stir until smooth and set aside.
- Assemble the Burgers:
- Place each grilled portobello mushroom cap on the bottom half of a toasted bun. Add lettuce, tomato slices, and red onion as desired. Generously spread Thousand Island sauce on the top half of the bun, then assemble the burger.
- Serve:
- Serve the burgers immediately with your favorite sides like fries, sweet potato wedges, or a fresh salad.
Tips for Cooking
- Let the mushrooms marinate for at least 15 minutes for maximum flavor.
- Toast the burger buns for added texture and flavor.
- For a spicier kick, add a few dashes of hot sauce to the Thousand Island sauce.
- You can add a slice of cheese to the burger for extra indulgence. Provolone or Swiss pair wonderfully!
Why You Should Try This Recipe
This Portobello Burger with Thousand Island Sauce is a delicious, satisfying alternative to traditional burgers. It’s packed with flavor, easy to make, and perfect for vegetarians or anyone looking to mix up their burger game. The tangy Thousand Island sauce elevates the dish, making it feel indulgent yet wholesome.
Whether you’re a lifelong vegetarian or just looking for a flavorful new twist on a classic favorite, this Portobello Burger with Thousand Island Sauce is sure to impress. With its smoky, savory mushroom base and creamy, tangy sauce, it’s a meal that’s as delicious as it is memorable. Fire up your grill and give this recipe a try—you won’t be disappointed!
