Portobello Mushroom Burgers with Caramelized Onions
Our Portobello Mushroom Burgers with Caramelized Onions will make you forget about beef patties forever. Seriously. The Portobello Caps are marinated in a simple mixture of herbs, spices, and olive oil before being grilled to perfection. The caramelized onions add a sweet and savory flavor that complements the mushrooms perfectly. Serve them on toasted buns with your favorite toppings, and you have a burger that's both healthy and delicious.
In the annals of culinary history, the humble Portobello mushroom has long played a supporting role, relegated to the sidelines as a mere accompaniment to more assertive ingredients like steak or chicken. But in this recipe, the Portobello takes center stage, proving that it is worthy of being the star of the show. The inspiration for the dish came to me one evening as I was grilling some Portobello mushrooms for dinner. As the mushrooms cooked, their juices caramelized on the grill, creating an enticing aroma that filled the air. I realized that this flavor had the potential to be something truly special. Armed with a newfound appreciation for the Portobello's potential, I set out to create a burger that would showcase its unique flavor and texture. After countless hours of experimentation, I finally perfected the recipe for our Portobello Mushroom Burgers with Caramelized Onions. These burgers are a testament to the power of simple, honest ingredients, and they have quickly become a favorite of our readers.
Portobello Mushroom Burgers with Caramelized Onions Portobello Mushroom Burgers with Caramelized Onions Portobello Mushroom Burgers with Caramelized Onions Portobello Mushroom Burgers with Caramelized Onions
Prep time: 15 | Cook time: 20 | Serves: 4
Ingredients
  • Portobello mushroom caps
  • Olive oil
  • Salt and pepper
  • Onion
  • Brown sugar
  • Balsamic vinegar
  • Hamburger buns
  • Your favorite burger toppings (such as lettuce, tomato, cheese, and mayonnaise)
Instructions
  1. Preheat oven to 400 degrees F (200 degrees C).
  2. Remove stems from portobello mushrooms and brush with olive oil.
  3. Season with salt and pepper.
  4. Place mushrooms on a baking sheet and roast for 15-20 minutes, or until tender.
  5. While the mushrooms are roasting, caramelize the onions.
  6. Slice the onion thinly and cook in a skillet over medium heat with a little olive oil until softened.
  7. Add brown sugar and balsamic vinegar and cook until the onions are caramelized.
  8. To assemble the burgers, place a portobello mushroom cap on a bun and top with caramelized onions and your favorite toppings.
Why It Works
  • The Portobello mushroom is a meaty and flavorful mushroom that is a great substitute for beef in burgers.
  • Marinating the Portobello mushrooms in olive oil, herbs, and spices helps to enhance their flavor and moisture.
  • Grilling the Portobello mushrooms gives them a slightly smoky flavor and a nice crust.
  • Caramelizing the onions brings out their natural sweetness and adds a delicious depth of flavor to the burgers.
  • Serving the Portobello Mushroom Burgers on toasted buns with your favorite toppings (such as lettuce, tomato, cheese, and mayonnaise) creates a perfect balance of flavors and textures.