Instructions

  1. Clean mushrooms by rubbing lightly with a damp towel and remove stems (if desired).
  2. Combine salt, pepper, garlic powder, vinegar and 3 tablespoons oil in a small bowl and combine by whisking briskly with a basting brush.
  3. Heat a medium-size skillet to medium heat and coat with remaining tablespoon of oil (if desired).
  4. Brush both sides of the mushrooms with the oil/vinegar mixture and place stem side down in the skillet for 5 minutes.
  5. Brush the top side of the mushrooms with some more of the mixture and turn over.
  6. Grill for another 5 minutes, brushing the stem side once with the oil/vinegar mixture.
  7. Remove from the skillet, place on the hamburger rolls and garnish with your favorite condiments.