grilled portobello burger with onion jam

Author of this recipe: Glayds Pressnell

"Try this savory grilled portobello burger with homemade onion jam! A flavorful, meatless option packed with umami and perfect for summer BBQs."

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Ingredients

• ### Ingredients for Grilled Portobello Burger with Onion Jam
• **For the Grilled Portobello Mushrooms:**
• - 4 large **portobello mushroom caps** (fresh, cleaned, and stems removed)
• - 2 tbsp **extra virgin olive oil** (for grilling and marinating)
• - 2 tbsp **balsamic vinegar** (adds a tangy flavor)
• - 2 cloves **garlic** (minced, for marinade)
• - 1 tsp **dried thyme** (or fresh thyme for herbaceous notes)
• - 1 tsp **smoked paprika** (for a smoky flavor)
• - **Salt and black pepper** (to taste)
• **For the Onion Jam:**
• - 2 large **yellow onions** (thinly sliced, for caramelization)
• - 2 tbsp **unsalted butter** (for sautéing onions)
• - 1 tbsp **brown sugar** (adds sweetness to the jam)
• - 2 tbsp **balsamic vinegar** (enhances the jam's tangy flavor)
• - 1/4 cup **red wine** (optional, for depth of flavor)
• - **Salt and black pepper** (to taste)
• **For Assembling the Burger:**
• - 4 **burger buns** (whole wheat, brioche, or gluten-free for dietary preferences)
• - 4 slices **provolone cheese** (or vegan cheese for a dairy-free option)
• - 1 cup **arugula** or **baby spinach** (for a fresh, peppery bite)
• - 1 large **tomato** (sliced, for added freshness)
• - 1/4 cup **mayonnaise** (or vegan mayo for a plant-based alternative)
• - 1 tbsp **Dijon mustard** (optional, for a tangy spread)
• **Optional Toppings:**
• - **Avocado slices** (for creaminess)
• - **Pickles** (for a tangy crunch)
• - **Roasted red peppers** (for a sweet and smoky flavor)
• This **grilled portobello burger with onion jam** is a flavorful, plant-based alternative to traditional burgers, perfect for vegetarians, vegans, or anyone looking for a hearty, meatless meal. The combination of smoky grilled mushrooms, sweet and tangy onion jam, and fresh toppings makes this burger a crowd-pleaser!

Steps

1. # How to Make a Grilled Portobello Burger with Onion Jam: A Flavorful Vegetarian Delight
3. If you're looking for a delicious and satisfying vegetarian burger option, this **grilled portobello burger with onion jam** is a must-try. Packed with umami flavors and a touch of sweetness, this recipe is perfect for summer grilling or a cozy weeknight dinner. Follow these detailed steps to create a restaurant-quality burger at home.
5. ---
7. ## **Ingredients**
8. ### For the Grilled Portobello Burgers:
9. - 4 large portobello mushrooms, stems removed
10. - 2 tbsp olive oil
11. - 2 tbsp balsamic vinegar
12. - 2 garlic cloves, minced
13. - 1 tsp smoked paprika
14. - Salt and pepper to taste
15. - 4 burger buns (whole wheat or brioche)
16. - Optional toppings: arugula, avocado slices, vegan mayo, or cheese
18. ### For the Onion Jam:
19. - 2 large red onions, thinly sliced
20. - 2 tbsp olive oil
21. - 2 tbsp balsamic vinegar
22. - 1 tbsp brown sugar
23. - 1/4 tsp salt
24. - 1/4 tsp black pepper
26. ---
28. ## **Step-by-Step Instructions**
30. ### **1. Prepare the Onion Jam**
31. 1. Heat **2 tbsp olive oil** in a skillet over medium heat.
32. 2. Add the **thinly sliced red onions** and cook for 10-12 minutes, stirring occasionally, until they soften and caramelize.
33. 3. Stir in **2 tbsp balsamic vinegar**, **1 tbsp brown sugar**, **1/4 tsp salt**, and **1/4 tsp black pepper**.
34. 4. Reduce the heat to low and let the mixture simmer for 15-20 minutes, stirring occasionally, until it thickens into a jam-like consistency. Set aside.
36. ---
38. ### **2. Marinate the Portobello Mushrooms**
39. 1. In a small bowl, whisk together **2 tbsp olive oil**, **2 tbsp balsamic vinegar**, **minced garlic**, **smoked paprika**, **salt**, and **pepper**.
40. 2. Brush the marinade generously over both sides of the **portobello mushrooms**. Let them sit for 10-15 minutes to absorb the flavors.
42. ---
44. ### **3. Grill the Portobello Mushrooms**
45. 1. Preheat your grill or grill pan to medium-high heat.
46. 2. Place the marinated mushrooms on the grill, gill-side down, and cook for 4-5 minutes.
47. 3. Flip the mushrooms and grill for another 4-5 minutes until tender and juicy.
49. ---
51. ### **4. Assemble the Burgers**
52. 1. Lightly toast the **burger buns** on the grill or in a toaster.
53. 2. Spread a layer of **onion jam** on the bottom bun.
54. 3. Place the grilled portobello mushroom on top.
55. 4. Add your favorite toppings, such as **arugula**, **avocado slices**, or a drizzle of **vegan mayo**.
56. 5. Top with the other half of the bun and serve immediately.
58. ---
60. ## **Tips for the Perfect Grilled Portobello Burger**
61. - Use fresh, firm portobello mushrooms for the best texture.
62. - For extra flavor, add a slice of melted cheese (like provolone or cheddar) to the mushrooms during the last minute of grilling.
63. - Pair your burger with sweet potato fries or a fresh salad for a complete meal.
65. ---
67. This **grilled portobello burger with onion jam** is a crowd-pleaser, even for meat lovers. With its rich, smoky flavors and sweet-savory onion jam, it’s a vegetarian dish that’s sure to impress. Try this recipe today and elevate your burger game!
69. **Keywords**: grilled portobello burger, onion jam recipe, vegetarian burger, portobello mushroom recipe, healthy burger ideas, summer grilling recipes.

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