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Grilled Portobello Burgers with Garlic Mayo

Grilled Portobello Burgers with Garlic Mayo





  • ½ tsp. ground black pepper
  • 1 tsp. onion powder
  • 1 tsp. fine sea salt
  • 1 tsp. garlic powder
  • 1 tsp. smoked paprika
  • 1 tsp. dark or light brown sugar
  • 2 tsp. chili powder
  • ⅓ cup extra virgin olive oil



  • Olive oil for grilling
  • ¼ tsp. garlic powder
  • ¼ tsp. fine sea salt
  • 1 tsp. chopped chives
  • ⅓ cup mayonnaise
  • 1 small red onion
  • 4 buns
  • 4 lettuce leaves
  • 4 portobello mushrooms, gills, and stems removed



  1. Preheat your grill to high heat.
  2. Combine your marinade ingredients in a small bowl.
  3. Sit mushrooms on a baking sheet and drizzle the marinade over the mushrooms.
  4. Rub sufficiently to coat all sides. Let them rest for 15 minutes.
    To make your garlic mayo, stir chives, garlic powder and salt into mayonnaise in a small bowl. Refrigerate until ready to serve.
  5. Coat your grill grate in olive oil to prevent sticking.
  6. Place small red onion rings and mushrooms on the grill for 5 to 7 minutes (per side). Once they are both dark and tender, remove from grill.
  7. To dress, put garlic mayo on the top and bottom bun, place lettuce and a few onions. Top with your mushroom and cover with the top bun.
  8. Plate and serve.